Chemistry & ElectricityPregunta 81 de 100
A product label states a pH of 3.5. What does this tell the esthetician?
a.The product is alkaline and will soften the acid mantle
b.The product is neutral, like pure water
c.The product is acidic, and because the scale is logarithmic it is significantly more acidic than a pH 5.5 product
d.The pH value describes the product's thickness, not its acidity
Explicación
A pH below 7 is acidic, 7 is neutral, and above 7 is alkaline, and each whole number represents a tenfold change, so pH 3.5 is roughly a hundred times more acidic than pH 5.5. That difference matters because low-pH exfoliating products act more aggressively on the skin. pH describes hydrogen ion concentration, not viscosity.
Practica las 100 preguntas gratis — sin registro.
Preguntas relacionadas de este tema
- Which statement about emulsions used in skin care is accurate?
- A client with dehydrated skin should look for which type of ingredient to attract and bind water in the skin?
- How do alpha hydroxy acids (AHAs) differ functionally from beta hydroxy acid (salicylic acid)?
- A client develops itching, redness, and small bumps only where a new serum was applied, appearing about a day after use. What is the most likely explanation and correct action?
- An esthetician plans a galvanic desincrustation treatment. Which statement is correct?
- Before using a high-frequency device, which precaution is most important?
Última revisión: · proceso editorial
Equipo Editorial de PrepPass · Verificado con California Esthetician Written Licensing Exam · Cómo revisamos