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

Question 1

What is the primary function of hyaluronic acid in skincare products?

Accepted Answer

It attracts and retains moisture in the skin

Answer

It exfoliates dead skin cells

Answer

It blocks UV radiation

Answer

It inhibits melanin production

Question 2

Which of the following ingredients is classified as a keratolytic agent?

Accepted Answer

Salicylic acid

Answer

Glycerin

Answer

Retinol

Answer

Niacinamide

Question 3

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

Accepted Answer

4.5 to 5.5

Answer

2.0 to 3.5

Answer

6.5 to 7.0

Answer

7.5 to 8.5

Question 4

Which vitamin derivative is most commonly used in skincare to stimulate collagen synthesis and reduce fine lines?

Accepted Answer

Ascorbic acid

Answer

Tocopherol

Answer

Panthenol

Answer

Cyanocobalamin

Question 5

What type of emulsion is a standard moisturizing lotion?

Accepted Answer

Oil-in-water

Answer

Water-in-oil

Answer

Silicone-in-water

Answer

Anhydrous

Question 6

Which ingredient acts as a chelating agent in cosmetic formulations?

Accepted Answer

Disodium EDTA

Answer

Sodium lauryl sulfate

Answer

Cetyl alcohol

Answer

Dimethicone