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

Hyaluronic acid is a humectant that can hold up to 1,000 times its weight in water, making it a powerful hydrating ingredient.

Question 2

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

Accepted Answer

Salicylic acid

Answer

Salicylic acid is a beta hydroxy acid that works as a keratolytic by dissolving the bonds between dead skin cells to promote exfoliation.

Question 3

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

Accepted Answer

4.5 to 5.5

Answer

The acid mantle of healthy skin maintains a slightly acidic pH between 4.5 and 5.5, which helps protect against bacteria and environmental damage.

Question 4

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

Accepted Answer

Ascorbic acid

Answer

Ascorbic acid, the active form of vitamin C, is a potent antioxidant that stimulates collagen production and brightens skin tone.

Question 5

What type of emulsion is a standard moisturizing lotion?

Accepted Answer

Oil-in-water

Answer

Most moisturizing lotions are oil-in-water emulsions, where small oil droplets are dispersed in a water base for a lightweight feel.

Esthetician Practice Exam Practice Test