California Manicurist (Nail Technician) — All Questions
The figures these questions turn on, laid out by section on dense colour pages you can print: California Manicurist / Nail Technician cheat sheet PDF — $9.99 →
100 questions
A client's natural nails are thin, peeling and tender after months of aggressive drilling at another salon, although the skin is healthy. She wants a full acrylic set today. What is the best professional response?
- a.Describe what you observe, decline the enhancement today, offer a gentle strengthening manicure, and note it on her record card✓
- b.Do the set anyway, since the enhancement will cover the damage
- c.Apply the acrylic set but keep the product thinner than usual
- d.Tell her she has a nail disease and send her to a doctor
You may describe what you see and recommend a gentler service, and the client record documents the condition and what you advised, which protects both of you. Building product over an already thinned, tender plate causes more damage and likely lifting, and a thinner overlay does not fix a weak foundation. You must never name a disease or diagnose, and the skin here is healthy so there is nothing medical to report.
You are applying the color coat during a polish service. What is the correct stroke pattern for each nail?
- a.Small circles worked outward from the center of the nail
- b.Three strokes, one down the center and one on each side, then cap the free edge✓
- c.Start at the free edge and pull the brush back toward the base of the nail
- d.One thick stroke straight down the middle of the nail
Color is applied in three strokes per coat, center first and then each side, which spreads a thin even film, and stroking the brush across the free edge seals the tip so the polish resists chipping. One thick stroke leaves a heavy ridge in the middle that stays soft and dents. Circles and pulling from the free edge back toward the base drag the polish into the skin and leave streaks.
You finish the hand massage and start to polish, but the polish beads up and slides around on the nail. What step did you skip?
- a.You did not remove the lotion and natural oils from the nail plate with polish remover or a dehydrator✓
- b.You forgot to apply cuticle oil before polishing
- c.You did not buff the nail plate until it was shiny
- d.You did not soak the nails long enough at the start of the service
Polish and every other coating need a clean, dry, oil-free plate, so after the massage the plate is wiped with polish remover or a nail dehydrator before the base coat goes on. Cuticle oil would add more oil and make the problem worse. Extra soaking leaves the plate full of water, and buffing a plate to a high shine makes it smoother and gives the polish even less to hold.
You cure the gel top coat and the surface still feels sticky. What is happening and what should you do?
- a.The gel is under-cured; return the hand to the lamp for five more minutes
- b.The top coat has expired; remove the whole set and start over
- c.The client's nails are oily; soak the hand in warm water and re-cure
- d.It is the normal inhibition layer; wipe it away with a lint-free wipe dampened with cleanser or alcohol✓
Many gels cure with a thin tacky film on top called the inhibition layer, and it is simply wiped off with a lint-free wipe and gel cleanser or alcohol to reveal the shine. This is expected and does not mean the product failed. Extra lamp time will not remove it, soaking the hand in water before wiping ruins the finish, and there is no reason to strip a set that cured correctly.
A client returns after two weeks and the acrylic is lifting at the base of every nail. You remember you carried the product right up against her skin. What should you change next time?
- a.Leave a tiny free margin so the product never touches living skin, and keep the product thinnest at the edges✓
- b.Use a coarser abrasive on the enhancement at every fill
- c.Apply the product thicker at the base so it grips the skin better
- d.File the natural nail thinner first so the product sinks in
Product that touches the eponychium or sidewalls cannot bond to skin, so it breaks away as the skin moves and lifting starts at the base, which is why a hairline margin is left all the way around and the product is feathered thin at every edge. Applying it thicker at the base makes a ledge that catches and pries off. Filing the natural nail thin damages the plate and does not improve adhesion, and a coarser abrasive on the enhancement has nothing to do with lifting at the base.
Your pedicure client leaves and the next client is already waiting. What must be done with the foot spa before the next pedicure?
- a.Add fresh hot water and a scoop of disinfectant while the next client soaks
- b.Rinse it with hot water only, since the real disinfection is done at the end of the day
- c.Drain it, remove and clean the screen and the area behind it, scrub and rinse the basin, then refill with water and an EPA-registered disinfectant and circulate it for the full contact time on the label✓
- d.Drain it and wipe the basin dry with a paper towel
California requires the full clean-and-disinfect cycle between every client: drain, take out the screen or filter and clean behind it, scrub and rinse the basin, then refill and circulate an EPA-registered disinfectant for the contact time the label states. Draining and wiping leaves the debris and biofilm behind the screen untouched. Disinfectant may never be circulating while a client's feet are in the tub, and end-of-day cleaning does not replace the between-client cycle.California Board of Barbering and Cosmetology Health and Safety Regulations (CCR Title 16)
You habitually let a little gel flood onto the skin around the nail and then cure it. A regular client now complains of itching, redness and swelling on her fingertips and eyelids. What is the concern?
- a.She is reacting to the acetone used at the last removal, not to the gel
- b.Repeated skin contact with uncured gel can cause an allergic sensitization that lasts for life, so product must be kept off the skin✓
- c.Redness like this is normal and clears up on its own once the gel is removed
- d.The lamp is too weak and she simply needs a longer cure time
This is the overexposure principle: uncured monomers touching skin over and over can trigger an allergy, and once a person becomes sensitized she is sensitized for life, which is why product is kept off the skin and cured fully. A stronger or longer cure does not undo skin contact that already happened. Symptoms appearing on the eyelids as well as the fingers point to a product allergy carried by touch, not to a solvent used once, and it will not simply go away on its own.
The largest tip in the box is still narrower than your client's nail plate. What should you do?
- a.Use a larger size from another tip system, or sculpt the extension on a form instead✓
- b.File the client's sidewalls narrower so the tip will fit
- c.Use the small tip but glue it higher up on the nail plate
- d.Force the tip on and fill the gaps at the sidewalls with adhesive
A tip must span the nail plate from sidewall to sidewall, so when nothing in the box fits you change systems or build the extension on a form. Forcing a small tip pinches the nail and the glue-filled gaps trap moisture and break down. Filing the client's sidewalls means filing living skin and the natural nail, and gluing the tip higher up puts the contact area and the seam in the wrong place, where it will pop off.
A male client with short nail beds who works with his hands all day asks what shape you recommend. What do you suggest and why?
- a.A pointed stiletto shape, because it makes the finger look longest
- b.A deep oval with a long free edge, because it is the most elegant look
- c.A round shape, because it follows the curve of the fingertip and is least likely to catch or break on short nails✓
- d.A long square shape, because the corners give the nail extra strength
Round is the standard shape for short nails and for clients who work with their hands, because it mirrors the fingertip, leaves no corner to snag and needs almost no free edge. A pointed shape is the weakest of all because the stress is narrowed to a single point. A long square has corners that catch on tools and gloves, and a deep oval needs length this client does not have.
A client with a new full set of liquid-and-powder enhancements asks how often she needs to come back. What do you tell her?
- a.About every two to three weeks for a fill and rebalance, because new growth moves the apex and the stress area✓
- b.Once a week, for a brand new set each time
- c.Every six to eight weeks
- d.Only when a nail actually breaks or lifts
Nails grow roughly a tenth of an inch a month, so in two to three weeks the apex and stress area have shifted forward and the enhancement becomes top-heavy and prone to cracking, which is what a fill and rebalance corrects. Waiting six to eight weeks or until something breaks allows lifting where moisture and bacteria can collect. A whole new set every week is unnecessary and would destroy the natural nail from repeated removal.
Want these explained in order? Manicurist / Nail Technician State Board Exam — Complete Study Guide (2026) — PDF + EPUB, $14.99 · 14-day refund →
A client tells you that months ago she slammed her finger in a car door, and ever since, the new nail has grown in with a permanent ridge and a twisted shape. Which nail structure was most likely damaged?
- a.The nail bed
- b.The hyponychium
- c.The free edge
- d.The matrix✓
The matrix is the only tissue that produces new nail cells, so an injury there can change the shape of every nail that grows out afterward, sometimes permanently. The nail bed only supports the plate as it slides forward; it does not manufacture new nail. The hyponychium and the free edge are at the fingertip end, far from where new nail is formed.
A client points at the whitish half-moon shape at the base of her thumbnail and asks you what it is. What is the most accurate answer?
- a.It is the lunula, the part of the matrix that can be seen through the nail plate✓
- b.It is a vitamin deficiency showing through the nail
- c.It is air trapped underneath the nail plate
- d.It is the hyponychium showing through from underneath
The lunula is simply the front portion of the matrix that lies close enough to the surface to be visible, which is why it looks whiter than the rest of the nail. It is not trapped air, and it is not a health or vitamin sign; a manicurist may never explain a nail feature as a medical or nutritional condition. The hyponychium sits under the free edge at the fingertip, not at the base of the nail.
A nervous first-time client asks why she cannot feel anything when you file the surface of her nail. What is the correct explanation?
- a.The nail plate is made of hardened, non-living keratin cells, so it contains no nerves✓
- b.The nail plate is fed by the eponychium, which keeps it numb
- c.The nail plate is living skin, but the nerves stop at the free edge
- d.The nail plate is a thin layer of cartilage with no blood supply
The nail plate is a hardened sheet of keratin made of dead cells, so it has no nerves and no blood vessels of its own and filing its surface is not felt. It is not living skin and it is not cartilage. The eponychium is living skin at the base of the nail and has nothing to do with numbing the plate; if a client does feel pain, you are filing too deeply or touching living tissue and must stop.
You remove a client's polish and notice that the natural nail looks pink through the plate. What is responsible for that pink color?
- a.The keratin of the nail plate is naturally pink
- b.The lunula runs the full length of the nail
- c.Cuticle tissue stains the plate pink over time
- d.The nail bed under the plate is living tissue rich in blood vessels✓
The nail bed is the living skin directly under the nail plate; it is full of blood vessels and nerves, and that blood supply is what shows through as pink. The plate itself is colorless dead keratin, so it takes its color from what is underneath. The lunula is only the visible portion of the matrix at the base, and dead cuticle tissue does not tint the nail.
A client asks you to cut all of her cuticle off and points to the band of living skin at the base of the nail plate. What must you do?
- a.Cut it carefully with sharp nippers because the client requested it
- b.Explain that this living skin is the eponychium and may not be cut, then gently push it back and remove only loose dead tissue✓
- c.Trim only the top layer of that living skin and leave the rest
- d.Soak the finger in acetone until the skin dissolves
The band of living skin at the base of the plate is the eponychium, and cutting living tissue is outside a California manicurist's scope of practice no matter what the client asks for. Cutting it, even partially, breaks the seal that keeps bacteria out and invites infection. Only loose dead tissue sitting on the nail plate may be removed, and acetone does not and should not be used to dissolve skin.CA Business & Professions Code §7320
Which tissue is the true cuticle, the only tissue a manicurist may gently remove?
- a.The skin that seals underneath the free edge
- b.The living skin at the base of the nail plate
- c.The dead, colorless tissue that clings to the surface of the nail plate✓
- d.The wall of skin along each side of the nail
The true cuticle is dead, colorless tissue shed onto the surface of the nail plate, and because it is not living it may be softened and gently removed. The living skin at the base is the eponychium, the seal under the free edge is the hyponychium, and the skin along the sides is the nail fold or sidewall; all three are living and may never be cut. Confusing the eponychium with the cuticle is the most common reason technicians cut skin they should not touch.
A client asks you to dig deep underneath the free edge of her nails with a metal tool so they will be really clean. Why should you refuse?
- a.Because you would break the hyponychium, the skin seal under the free edge that keeps bacteria out✓
- b.Because metal tools may never touch a natural nail plate
- c.Because the matrix is located directly under the free edge
- d.Because the free edge itself contains nerve endings and will bleed
The hyponychium is the living skin that seals the space between the free edge and the fingertip, and it is a barrier against bacteria and fungus. Digging under the free edge tears that seal and creates a direct entry point for infection, so clean gently and only at the surface. The free edge is dead keratin with no nerves, the matrix is at the base of the nail rather than the tip, and disinfected metal implements are allowed when used correctly.
What is the function of the nail grooves and the nail folds (sidewalls)?
- a.They deliver the blood supply directly into the nail plate
- b.They produce the new nail cells at the base of the nail
- c.They form the tracks and folds of skin that hold the nail plate and guide it as it grows forward✓
- d.They seal the nail plate so water cannot pass under it
The nail grooves are the narrow tracks on each side of the nail bed, and the nail folds or sidewalls are the skin that overlaps them; together they hold the plate in place and steer its growth toward the fingertip. New nail cells come only from the matrix, the seal under the free edge is the hyponychium, and the plate itself has no blood supply because it is dead keratin. Filing or cutting into the sidewalls damages living skin and can lead to an ingrown nail.
A client has a dark stain on her natural nail close to the base and asks how long it will take to grow out completely. Based on normal nail growth, what should you tell her?
- a.It will never grow out, because the stain is in the nail bed
- b.About 4 to 6 months, because a fingernail grows roughly 1/10 inch (about 2.5 mm) per month✓
- c.About 2 years, the same as any nail on the body
- d.About 3 to 4 weeks, since the whole nail is replaced every month
A healthy fingernail grows about 1/10 inch, or roughly 2.5 mm, each month, so it takes about four to six months for a completely new plate to replace the old one. A nail is nowhere near replaced in a month, and two years is far longer than even a toenail needs. Telling her the stain is in the nail bed would be guessing at a medical explanation, which a manicurist may not do.
A client lost part of her big toenail after dropping something on her foot and wants to know how long it will take for a completely new toenail to replace it. What is the best answer?
- a.About 4 to 6 weeks
- b.Toenails never fully replace themselves once they are lost
- c.About 4 to 6 months, the same as a fingernail
- d.About 9 to 12 months, because toenails grow more slowly than fingernails✓
Toenails grow noticeably more slowly than fingernails and generally need about nine to twelve months to be completely replaced. Four to six weeks is nowhere near enough time, and four to six months is the timeline for a fingernail, not a toenail. Toenails do regrow as long as the matrix was not permanently destroyed, but growth also slows with age, poor circulation and illness.
A client removes her sandals and you see a thickened, yellow-green toenail that is crumbling at the edge and gives off a foul odor. What must you do?
- a.Politely explain that you cannot perform the service and recommend that she see a physician✓
- b.Buff the nail thin, disinfect extra well, and continue the pedicure
- c.Service the other nine toes and simply skip that one
- d.Tell her she has a nail fungus and sell her an antifungal product from the retail shelf
A thickened, discolored, crumbling nail with an odor shows signs of infection, and California manicurists may not service an infected nail. The correct response is to politely explain that you cannot perform the service and recommend she see a physician, without naming a disease. Buffing or filing it spreads the organism through the dust and around the salon, working around it still exposes the tools, the water and the next client, and naming the condition and selling a treatment is diagnosing and treating, which is outside your scope.California Board of Barbering and Cosmetology Health and Safety Regulations (CCR Title 16)
A regular client sits down and the skin around one fingernail is red, shiny, swollen and painful, with a small amount of pus at the nail fold. What is the correct action?
- a.Work around that finger and complete the other nine nails
- b.Politely explain that you cannot perform the service and recommend that she see a physician✓
- c.Tell her it is paronychia and that she needs an antibiotic
- d.Press gently to release the pus, then disinfect the area and continue
Redness, swelling, pain and pus are classic signs of an active infection, and a manicurist may not service infected skin or nails. You should politely explain that you cannot perform the service and recommend she see a physician. Squeezing pus spreads bacteria and can drive the infection deeper, working around the finger still puts your implements and the next client at risk, and naming the condition and recommending an antibiotic is a medical diagnosis you are not licensed to make.CA Business & Professions Code §7320
During a pedicure consultation you notice that the side of a client's big toe is swollen, warm and oozing fluid where the nail has grown down into the skin. What must you do?
- a.Cut a V-shaped notch in the center of the nail so the corner will grow out
- b.Lift the nail corner with a metal pusher and pack cotton underneath it
- c.Trim the ingrown corner out with nippers and apply antiseptic
- d.Politely explain that you cannot perform the service and recommend that she see a physician✓
Swelling, heat and discharge mean the ingrown toenail is already infected, and servicing infected tissue is prohibited, so you politely decline and recommend a physician or podiatrist. Digging the corner out or packing cotton under the nail means working on living, infected tissue and can push bacteria deeper. Cutting a V-notch does nothing to change how the nail grows, since growth comes only from the matrix, and applying antiseptic to an infection is treatment, which is outside a manicurist's scope.California Board of Barbering and Cosmetology Health and Safety Regulations (CCR Title 16)
A client's foot has itchy, peeling skin between the toes with raw, weeping cracks in it. What is the correct response?
- a.Apply an antifungal cream from your retail shelf and rebook her for next week
- b.Politely explain that you cannot perform the service and recommend that she see a physician✓
- c.Soak the foot longer in the disinfected spa so the skin softens first
- d.Use a foot file on the peeling skin, then finish the pedicure while wearing gloves
Broken, weeping skin is an open door for infection and is also a sign of a contagious condition, so no service may be performed and you politely refer her to a physician. Soaking or filing that skin spreads the organism into the tub, the file and the towels, and gloves protect you but do nothing to protect the client or the next client. Applying an antifungal product is treating a condition, and a manicurist may not treat or diagnose anything.California Board of Barbering and Cosmetology Health and Safety Regulations (CCR Title 16)
A teenage client is worried about small white spots scattered across several of her fingernails. The nail folds and surrounding skin look completely healthy. What should you do?
- a.Refuse the service, because white spots always mean a fungal infection
- b.Explain that white spots (leukonychia) usually come from minor injury to the matrix, then continue the service as normal✓
- c.Scrape the spots off the nail plate with a metal pusher
- d.Tell her the spots mean she is low on calcium and should take a supplement
Leukonychia is a harmless disorder, usually caused by a small bump or injury at the matrix, and because there is no infection you may service the nails normally. It is not a fungal infection, so refusing service is not needed, and the spots grow out on their own. Telling a client she is low on calcium is offering a medical or nutritional opinion you are not licensed to give, and the spots are inside the plate so scraping only thins and damages the nail.
A client has living skin that has grown forward and is stuck tightly to the surface of the nail plate, a condition called pterygium. What is the correct way to handle it?
- a.File it off the nail plate with a coarse abrasive
- b.Leave an acid cuticle remover on it for twenty minutes until the skin releases
- c.Cut the attached skin away with nippers so the nail looks longer
- d.Do not cut it; care for the area gently, keep it conditioned with oil, and refer her to a physician if it is severe✓
Pterygium is living skin, not dead cuticle, so cutting or filing it is cutting living tissue and is outside a manicurist's scope; it also makes the condition worse and can cause bleeding and infection. The correct approach is gentle care with oil and massage, and a referral to a physician if the growth is severe. A strong cuticle remover left on for twenty minutes will irritate and burn the skin without solving anything.CA Business & Professions Code §7320
A client who spent two weeks in the hospital with a high fever now has a deep horizontal groove running across every fingernail at about the same place, and she asks you what disease she has. How should you respond?
- a.Buff the grooves completely flat so the nails look smooth again
- b.Diagnose it as a fungal infection and refuse all service
- c.Explain that grooves like these can appear after an illness because nail growth slows, that you are not permitted to diagnose, and that her doctor can answer health questions, then service the nails gently✓
- d.Tell her she has a serious internal disease and should stop getting manicures
Horizontal grooves across the nails, known as Beau's lines, commonly follow a fever, illness or serious stress that temporarily slowed the matrix, and the nail is not infected, so it may be serviced gently. Nail changes can reflect general health, but a manicurist may never name a disease or make a diagnosis; that is the physician's job. Buffing the grooves flat would thin the plate and weaken it, and calling it a fungal infection is both wrong and a diagnosis you cannot make.CA Business & Professions Code §7320
How many bones are found in the wrist, the palm and the fingers of one hand?
- a.7 carpals in the wrist, 5 metacarpals in the palm and 26 phalanges in the fingers
- b.8 carpals in the wrist, 14 metacarpals in the palm and 5 phalanges in the fingers
- c.8 carpals in the wrist, 5 metacarpals in the palm and 14 phalanges in the fingers✓
- d.5 carpals in the wrist, 8 metacarpals in the palm and 12 phalanges in the fingers
Each hand has 8 carpals in the wrist, 5 metacarpals in the palm and 14 phalanges in the fingers, because the thumb has two phalanges and each of the other four fingers has three. The forearm you massage above the wrist has only two bones, the radius on the thumb side and the ulna on the little-finger side. The other choices simply swap those numbers around; 7 is the number of tarsals in the foot, not carpals in the wrist.
You are massaging a client's lower leg and foot during a pedicure. Which statement about the bones you are working over is correct?
- a.The lower leg contains the radius and the ulna, and the foot has 26 bones
- b.The lower leg has a single bone called the fibula, and the foot has 14 bones in total
- c.The tibia is the large inner shin bone and the fibula is the smaller outer bone, and the foot has 26 bones: 7 tarsals, 5 metatarsals and 14 phalanges✓
- d.The tibia is the small outer bone and the fibula is the large shin bone, and the foot has 19 bones
The lower leg has two bones, the larger tibia along the inner shin and the thinner fibula on the outer side, and each foot has 26 bones made up of 7 tarsals, 5 metatarsals and 14 phalanges. The radius and ulna are forearm bones, not leg bones. The remaining choices either drop a bone from the lower leg or reverse the sizes of the tibia and fibula.
While massaging a client's lower leg you work the muscle that runs down the front of the shin and lifts the foot upward at the ankle. Which muscle is it?
- a.The tibialis anterior✓
- b.The peroneus longus
- c.The gastrocnemius
- d.The soleus
The tibialis anterior lies along the front of the shin and pulls the foot upward, so it is the muscle you feel there. The gastrocnemius and the soleus are the calf muscles at the back of the leg and they point the foot downward, while the peroneus longus turns the foot outward. In the hand, remember that flexors bend the fingers, extensors straighten them, abductors spread them apart and adductors draw them back together.
In a liquid-and-powder (acrylic) service, how do the products actually harden?
- a.The liquid is the polymer and the powder is the monomer, and the bead hardens only after it goes under an LED lamp.
- b.The powder carries photoinitiators, so the bead will not form chains until UV light reaches it.
- c.The liquid monomer and the powder polymer, with an initiator, join together in polymerization — a heat-releasing (exothermic) reaction that cures without any lamp.✓
- d.Polymerization is a cooling reaction, so a properly mixed bead feels cold to the client as it sets.
Liquid-and-powder systems are a monomer (liquid) plus a polymer (powder) with a catalyst/initiator; when they meet, the small monomer units link into long chains in polymerization. That reaction gives off heat, which is why a client may feel warmth, and it needs no lamp at all. The choices that reverse monomer and polymer, or that require a lamp or photoinitiators, describe UV/LED gel, not liquid-and-powder; and polymerization releases heat rather than absorbing it.
You cure a client's gel in a lamp that was not made for that gel line. Within a week the gel is lifting at the edges and she says her fingertips itch. What is the most likely cause?
- a.The gel was cured too thoroughly, which always makes gel brittle and makes it peel off in a week.
- b.Lifting and itching together prove that the client is allergic to acetone.
- c.Gel does not really need a lamp; the lifting comes from the base coat alone and the itching is unrelated to the product.
- d.The photoinitiators in the gel never received the wavelength and lamp output they need, so the coating stayed under-cured — under-cured gel lifts and the uncured chemical on the skin can cause sensitization.✓
UV/LED gel only polymerizes when its photoinitiators are struck by the correct wavelength and intensity, so the wrong lamp leaves the coating partly liquid inside. Under-cured gel bonds poorly and lifts, and the uncured ingredients that reach the skin are exactly what drives allergic sensitization. Over-curing is not what caused this, gel absolutely does require a matched lamp, and acetone was not part of this service.
A newly hired technician pours acid (methacrylic acid) primer into an open dish and brushes it over the whole nail and the surrounding skin so the acrylic will 'really stick.' What should you tell her?
- a.Flooding the skin is fine as long as she wipes the skin off after the enhancement has cured.
- b.She should use even more primer, because more primer always means less lifting.
- c.Acid primer is corrosive: wear gloves and eye protection, apply a sparing amount to the natural nail plate only, and never let it touch skin.✓
- d.Acid primer is harmless on skin; only breathing the vapor is a concern.
Methacrylic acid primer is corrosive to skin and eyes, so it calls for gloves, eye protection and a very small amount applied only where the enhancement will sit on the natural nail. Getting it on the skin can burn and it also feeds allergic sensitization, so wiping it off later does not undo the contact. More primer does not improve retention — proper prep and a thin, sparing application do; a non-acid primer is the gentler alternative.
A client arrives wearing gel polish and hard enhancements and wants everything removed today. Which statement about the removal solvents is correct?
- a.Non-acetone remover is the stronger product and should be used on enhancements, while acetone is only for plain polish.
- b.Acetone is non-flammable, so an open bowl of it can safely sit next to a lit candle on the table.
- c.Ethyl acetate (non-acetone) removes gel and enhancements faster than acetone does.
- d.Acetone dissolves polish, gel and enhancements quickly, while ethyl acetate (non-acetone) is slower and gentler; acetone is flammable and drying, so keep it capped and away from any flame.✓
Acetone is the fast, aggressive solvent that will break down polish, gel and acrylic, but it is flammable and it strips oils from the nail and skin, so it belongs in a closed container away from heat and flame. Ethyl acetate is the slower, gentler non-acetone solvent used mainly on regular polish. The options calling non-acetone faster or stronger have it backwards, and calling acetone non-flammable is a serious safety error.
While applying nail tips you squeeze a large drop of adhesive onto each tip so it will 'hold longer.' What actually happens?
- a.The extra adhesive acts as a primer, so no other nail preparation is needed.
- b.Tip and wrap adhesive is a cyanoacrylate that bonds best in a thin layer; too much floods out onto the skin, traps air pockets, sets slowly and unevenly, and the tip lifts or pops off.✓
- c.A thicker layer of cyanoacrylate always creates a stronger, longer-lasting bond than a thin one.
- d.Cyanoacrylate only sets under a UV lamp, so how much you use makes no difference.
Cyanoacrylate adhesive cures fastest and strongest as a thin film between two close-fitting surfaces, so a thin even layer is what holds a tip on. A heavy drop squeezes out onto the skin, leaves air bubbles under the tip and cures unevenly, which is a common cause of lifting and popped-off tips. Adhesive is not a primer and does not replace prep, and cyanoacrylate cures chemically — often with an activator — not under a lamp.
A client's enhancements lift within a few days every single time. Her nail plates look shiny and feel oily. What is the correct way to improve adhesion?
- a.File the natural nail plate down thin until the product finally holds.
- b.Apply a much thicker bead of product so its weight can overpower the oil.
- c.Skip washing her hands so the natural oils help the product grip the plate.
- d.Clean and dry the plate, remove surface oil and moisture with a dehydrator, and lightly buff off the shine with an appropriate abrasive before applying product.✓
Adhesion needs a clean, dry, oil-free surface plus a little mechanical grip, so the correct sequence is cleaning, a dehydrator to take off surface moisture and oil, and a light roughening of the shine. Filing the natural nail thin to force a bond weakens and damages the plate and is never acceptable. Leaving oils in place is exactly what causes lifting, and a thicker bead only adds weight and stress to a bond that was never clean to begin with.
What does the overexposure principle mean for a nail technician?
- a.Only products labeled as toxic can cause a reaction, so products considered safe may freely touch the skin.
- b.Repeated or prolonged contact with a product — even one that is safe in normal use — can build up a sensitivity, and once you become allergic you stay allergic, so keep products off the skin and use gloves and good ventilation.✓
- c.One single splash of any product permanently sensitizes you, so an accidental spill ends a nail career.
- d.Overexposure only matters for clients, because technicians build up immunity to the products over time.
Overexposure describes a dose problem: the amount and the number of times a chemical touches you or is breathed in, day after day, is what creates sensitization. Once a person is sensitized to a monomer or gel ingredient, the allergy is generally lifelong, so prevention means keeping product off the skin, wearing gloves and ventilating at the source. It is not limited to 'toxic' products, it is not usually caused by one splash, and technicians do not develop immunity — their risk goes up with exposure, not down.
A regular gel client returns with itching, redness, swelling and small blisters on the skin around several nails and on her eyelids. Looking back, gel often flooded her sidewalls and cuticle area. What should you do?
- a.Switch her to a stronger acid primer so the primer seals the skin from the gel.
- b.Repeat the same gel service but cure it twice as long to burn off whatever is irritating her.
- c.Stop the gel service, explain that what you see looks like an allergic contact reaction most likely from product touching the skin, refer her to a physician, and afterward keep product off the skin and cure fully.✓
- d.Tell her it is a nail fungus and sell her an antifungal product to use at home.
Itching, redness, swelling and blistering on the fingers, eyelids or face is the classic pattern of allergic sensitization to a nail product, and gel flooding the skin plus under-curing is the usual cause. The manicurist's job is to stop the service, describe what is seen without diagnosing, refer the client to a physician, and correct the technique so product never touches skin. Curing longer, calling it a fungus and selling a treatment, or adding a corrosive acid primer to skin all make the exposure worse.
During an inspection the inspector finds monomer poured into an unlabeled sports-drink bottle, sitting open on a shelf next to the salon's water heater. What is wrong with this?
- a.Nothing is wrong, because the technician who poured it knows what is in the bottle.
- b.It is acceptable as long as the bottle is used up within a week and then thrown away.
- c.Products must stay in their original closed, labeled containers, stored cool and away from heat and open flame — never decanted into unlabeled or food and drink containers.✓
- d.Only disinfectants have to be labeled; professional nail products are exempt from labeling.
Every chemical in the salon has to be identifiable to employees and to the inspector, which is why products stay in their original labeled containers, kept closed, cool and away from heat and flame. A drink bottle is the worst possible choice because someone can swallow the contents, and an unlabeled container also defeats the right-to-know rules and the matching Safety Data Sheet. Personal knowledge, short-term use, and the idea that only disinfectants need labels are all incorrect.Cal/OSHA Hazard Communication Standard (8 CCR §5194)
Which statement about pH is correct for nail and skin care?
- a.The higher the pH climbs, the harder and tighter the keratin of the nail becomes.
- b.Pure water is strongly acidic at pH 7, and the natural nail plate is alkaline.
- c.pH has no effect on the nail plate at all, because the plate is made of dead keratin.
- d.Pure water is neutral at pH 7, while the skin and the natural nail plate are slightly acidic; strongly alkaline products swell and soften keratin.✓
On the pH scale, 7 is neutral — that is pure water — and the skin and nail plate normally sit slightly below 7, on the acidic side. Products that are strongly alkaline raise the pH, causing keratin to absorb water, swell and soften, which is why harsh alkaline products can leave the plate weak or over-softened. Water is not acidic, a high pH softens rather than hardens keratin, and even dead keratin still reacts chemically to pH.
Which agency issues and regulates manicurist licenses in California, and which law governs that licensing?
- a.Cal/OSHA, under the state workplace safety code
- b.The California Department of Public Health, under the state sanitation code for nail salons
- c.The Board of Barbering and Cosmetology, part of the Department of Consumer Affairs, under the Barbering and Cosmetology Act✓
- d.The county health department where the salon is located, under local ordinance
Manicurists are licensed, renewed and inspected by the Board of Barbering and Cosmetology, which operates under the Department of Consumer Affairs, and the Barbering and Cosmetology Act is the governing statute. The county health department and the Department of Public Health regulate other kinds of facilities, not nail licensing. Cal/OSHA covers worker safety topics such as chemical labeling and bloodborne pathogens, but it does not issue your manicurist license.California Barbering and Cosmetology Act (B&P Code §7301 et seq.)
What must a person complete in order to qualify for a California manicurist license?
- a.A 600-hour course, be at least 18 years old, hold a high school diploma, and pass a practical examination only
- b.A board-approved 400-hour manicurist course or an approved apprenticeship, be at least 17 years old and have completed the 10th grade, and pass the written licensing examination✓
- c.Any nail course offered by a product manufacturer, plus payment of the license fee
- d.Two years of paid work under a licensed manicurist plus employer letters, with no examination required
California requires the approved 400-hour manicurist course or an approved apprenticeship, a minimum age of 17 with completion of the 10th grade, and a passing score on the written licensing exam. The 600-hour, 18-year-old and high school diploma answer overstates the requirements and drops the written exam. On-the-job time alone or a manufacturer's class does not substitute for approved training and the exam.California Barbering and Cosmetology Act (B&P Code §7301 et seq.)
You are hired at a busy salon and realize your manicurist license expired eight months ago, but you have kept taking clients the whole time. Which statement is correct?
- a.There is a one-year grace period, so you may keep working as long as you renew before the year ends
- b.Licenses must be renewed every two years, and working on an expired license is unlicensed practice that can bring a citation, a fine and discipline✓
- c.Your license renews automatically as long as the salon holds a current establishment license
- d.Manicurist licenses are renewed every four years, so nothing was due yet
A California manicurist license must be renewed every two years, and once it expires you have no authority to work — every service performed after that date is unlicensed practice and can result in a citation, a fine and action against your license. There is no grace period that lets you keep working, and the salon's establishment license covers the business, not the individual worker. The four-year renewal cycle is simply wrong.California Barbering and Cosmetology Act (B&P Code §7301 et seq.)
On your first day at a new salon, the owner collects your license and locks it in a binder in the back office "so nothing happens to it." What does California law require?
- a.The license only needs to be produced if an inspector specifically asks to see it
- b.Keeping the original safe at home and a photocopy in the office satisfies the requirement
- c.Only the establishment license must be posted; individual worker licenses stay in the personnel file
- d.Your license must be displayed in plain view in the establishment where you are working✓
Each licensee's license must be posted in plain view at the establishment where that person works, so clients and inspectors can see it without asking. Storing it in a back-office binder, at home, or producing it only on request does not meet the display requirement. The establishment license must also be posted, but it does not replace the individual manicurist licenses.California Barbering and Cosmetology Act (B&P Code §7301 et seq.)
During a pedicure your client asks you to shave down her thick heel callus with a credo blade, and then to wax her upper lip while the polish dries. How should you respond?
- a.Decline both, explain that a manicurist may not cut living tissue and may not perform skin services beyond the hands and arms to the elbow and the feet and legs to the knee, smooth the callus with a foot file, and refer her elsewhere✓
- b.Do the lip wax because it is a simple skin service, but refuse the blade
- c.Do both, since a manicurist license covers the hands, the feet and the skin
- d.Do both if she signs a waiver accepting the risk
A manicurist's scope is caring for the nails of the hands and feet plus cleansing, massaging and beautifying the hands and arms up to the elbow and the feet and legs up to the knee, so facial waxing is outside that scope. Razor-type callus shavers are prohibited because cutting living skin is not permitted; reduce callus with a foot file and send severe callus to a podiatrist. A client waiver cannot give you authority the license does not grant, and the lip wax is not legal simply because it seems minor.CA Business & Professions Code §7320
A nail salon is sold to a new owner, who also moves the shop two blocks down the street. What do the establishment rules require?
- a.Only the individual licenses matter; the shop itself does not need a license
- b.A change of address can simply be reported whenever the next renewal comes due
- c.The existing establishment license transfers automatically with the business to the new owner
- d.The salon must hold its own current establishment license, and the Board must be notified of the change of ownership and the change of location✓
The business itself has to be licensed as an establishment in addition to every person working there, and the Board must be notified when the establishment changes ownership or moves to a new address. An establishment license does not simply travel with the sale, and waiting until the next renewal to report a move leaves the salon operating outside its licensed address. Saying only individual licenses matter ignores the establishment licensing requirement entirely.California Barbering and Cosmetology Act (B&P Code §7301 et seq.)
It is a packed Saturday afternoon and a Board inspector walks into the salon without an appointment. What is the correct response, and what will the inspector be looking at?
- a.Ask the inspector to schedule an appointment and come back on a slower day, since inspections must be arranged in advance
- b.Refuse entry unless the inspector produces a search warrant
- c.Let the inspector in and cooperate — inspections are unannounced, and the inspector will check disinfection containers and solutions, dated foot spa cleaning records, posted licenses, labeled product containers and any prohibited products✓
- d.Cooperate, but understand the inspector only verifies that the establishment license is current and nothing operational
Board inspections are unannounced, and the inspector may look at your disinfection setup and solution, the dated foot spa cleaning logs, whether licenses are displayed, whether product containers are closed and labeled, and whether any prohibited item such as MMA or a credo blade is on site. Inspections are not scheduled around your appointment book, and no warrant is required for a routine inspection of a licensed salon. The inspection covers day-to-day practice, not just paperwork on the wall.California Board of Barbering and Cosmetology Health and Safety Regulations (CCR Title 16)
An inspector finds used metal nippers sitting loose in a drawer, no cleaning records for any of the four foot spas, and a credo blade in a technician's station. What can result?
- a.The Board can issue citations with fines for the violations, and repeated or serious violations can lead to suspension or revocation of a license✓
- b.Only the salon owner can be cited; an individual manicurist is never personally penalized
- c.Fines apply only if a client was actually injured and filed a complaint
- d.A first inspection can only produce a verbal warning, so no money penalty is possible
Health and safety violations found at an inspection can be cited with fines, and a pattern of violations or a serious one can lead to suspension or revocation of the establishment or individual license. Enforcement does not wait for a client to be hurt or to complain — the violation itself is enough. Both the establishment and the individual licensee can be held responsible, and there is no rule limiting a first inspection to a verbal warning.California Board of Barbering and Cosmetology Health and Safety Regulations (CCR Title 16)
How is a client supposed to learn where to file a complaint about a nail salon, and what records must the salon be able to show?
- a.The salon must hand every client a printed complaint form at the end of each service
- b.Complaints go to the county health department, and no notice has to be posted in the salon
- c.The salon must display the Board's required consumer notice with the Board's contact information, and must keep required records such as the dated foot spa cleaning logs available for the inspector✓
- d.The notice is only required in salons with more than five employees
Every licensed establishment must post the Board's consumer notice showing how to reach the Board, so a client who is unhappy or injured knows exactly where to file a complaint, and the salon must be able to produce required records such as the dated cleaning log for each foot spa. Complaints about licensed nail salons go to the Board, not the county health department. The posting requirement does not depend on how many people work there, and there is no rule requiring a complaint form be handed out with every service.California Barbering and Cosmetology Act (B&P Code §7301 et seq.)
A friend whose manicurist license lapsed asks to take walk-in clients at your station and to use your license number if anyone asks. What should you do?
- a.Allow it as long as you stay in the salon and directly supervise her work
- b.Allow it for up to 30 days while her renewal application is being processed
- c.Refuse — every person performing nail services must hold their own current license, and letting someone work under yours is unlicensed practice for which both of you can be cited and your own license can be suspended or revoked✓
- d.Allow it if the salon owner approves the arrangement in writing
Each person who performs nail services must personally hold a current California license, so a lapsed licensee working under your number is unlicensed practice and you are helping it happen. Supervision, a pending renewal and the owner's written blessing change nothing, because none of them creates licensed authority. Both of you can be cited and fined, and your own license can face suspension or revocation.California Barbering and Cosmetology Act (B&P Code §7301 et seq.)
How hard is the exam?
The California Manicurist (Nail Technician) written exam is 65 questions (60 scored plus 5 pretest) in 90 minutes. The Board publishes no passing percentage — 16 CCR §932(b) and PSI's bulletin both give a criterion-referenced method with no number. Written-only at a PSI center. Combined application and license fees are about $110. Manicurists and pedicurists earn a median of about $34,660/year (BLS, May 2024).
- Recommended study hours
- 30-60 hours of review for working students.
- Published pass rate
- 81% (the source does not say which attempts it counts) — California Board of Barbering and Cosmetology, 2025 average of the monthly rates, Nail Technician. The highest of the five license types on the Board’s own slide, and the written theory exam only. The Board does not separate first attempts from retakes.Source: California Board of Barbering and Cosmetology — Q1 2026 Town Hall, Exam Updates (PDF), slide “2025 Pass Rates” · California Board of Barbering and Cosmetology — Examination Results by School (quarterly pass/fail rates)
- Where to focus first
- Nails is the largest area at 49% — nail structure, services, disorders and safe product use.
Fees and salaries are approximate and change over time. The pass rate above is quoted from the source linked beside it, for the period that source covers — where we have not checked a source, we say so and give no number.