Chemistry & ProductsQuestion 306 of 484
Cationic surfactants such as quaternary ammonium compounds are most often found in:
a.Deep-cleansing clarifying shampoos
b.Conditioners and detangling rinses
c.Permanent waving solutions
d.Hard-surface salon disinfectant sprays only
Explanation
Cationic (positively charged) surfactants are attracted to the negatively charged sites on damaged hair. They neutralize static, smooth the cuticle, and help detangling, which is exactly what conditioners are designed to do.
Practice all 484 questions free — no signup required.
Related questions on this topic
- Approximately what percentage of hydrogen peroxide by weight is in a 40-volume developer?
- Compared with a thiol-based (ammonium thioglycolate) perm, a sulfite-based 'true acid' perm typically:
- Surfactants in shampoo are classified by the electrical charge of their head group. Which charge class is the primary CLEANSING surfactant in most shampoos?
- Which statement comparing sodium lauryl sulfate (SLS) and sodium laureth sulfate (SLES) is most accurate?
- Which skin-care ingredient functions as a HUMECTANT by drawing water from the air and from deeper skin layers to the surface?
- Among the common alpha hydroxy acids used in chemical exfoliants, which acid has the SMALLEST molecule and therefore the deepest penetration into the stratum corneum?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California Board of Barbering & Cosmetology Exam · How we review