Esthetician Practice Exam Esthetician Practice Esthetics Chemistry and Ingredients Questions and Answers 2

Question 1

Which ingredient is commonly used in chemical exfoliants to dissolve the bonds between dead skin cells?

Accepted Answer

Glycolic acid

Answer

Zinc oxide

Answer

Titanium dioxide

Answer

Cetyl alcohol

Question 2

What is the primary function of an emulsifier in a skincare formulation?

Accepted Answer

To blend oil and water phases together

Answer

To preserve the product from bacteria

Answer

To increase the SPF rating

Answer

To add fragrance to the product

Question 3

Which vitamin is also known as ascorbic acid and is used in skincare for its antioxidant and brightening properties?

Accepted Answer

Vitamin C

Answer

Vitamin A

Answer

Vitamin E

Answer

Vitamin D

Question 4

What pH range is considered optimal for the acid mantle of healthy skin?

Accepted Answer

4.5 to 5.5

Answer

2.0 to 3.5

Answer

7.0 to 7.5

Answer

8.0 to 9.0

Question 5

Which ingredient is a humectant that attracts moisture from the environment to the skin?

Accepted Answer

Hyaluronic acid

Answer

Dimethicone

Answer

Petrolatum

Answer

Beeswax

Question 6

Salicylic acid is classified as which type of hydroxy acid?

Accepted Answer

Beta hydroxy acid (BHA)

Answer

Alpha hydroxy acid (AHA)

Answer

Polyhydroxy acid (PHA)

Answer

Gamma hydroxy acid