Esthetician Practice Chemistry and Product Ingredients Questions and Answers Flashcards
6 cards from real Esthetician Practice Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Esthetician Practice Chemistry and Product Ingredients Questions and Answers flashcards as text
What is the primary function of hyaluronic acid in skincare products?
Answer: It attracts and retains moisture in the skin
Hyaluronic acid is a humectant that can hold up to 1,000 times its weight in water, making it a powerful hydrating ingredient.
Which of the following ingredients is classified as a keratolytic agent?
Answer: Salicylic acid
Salicylic acid is a beta hydroxy acid that works as a keratolytic by dissolving the bonds between dead skin cells to promote exfoliation.
What pH range is considered ideal for the acid mantle of healthy skin?
Answer: 4.5 to 5.5
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.
Which vitamin derivative is most commonly used in skincare to stimulate collagen synthesis and reduce fine lines?
Answer: Ascorbic acid
Ascorbic acid, the active form of vitamin C, is a potent antioxidant that stimulates collagen production and brightens skin tone.
What type of emulsion is a standard moisturizing lotion?
Answer: Oil-in-water
Most moisturizing lotions are oil-in-water emulsions, where small oil droplets are dispersed in a water base for a lightweight feel.
Which ingredient acts as a chelating agent in cosmetic formulations?
Answer: Disodium EDTA
Disodium EDTA is a chelating agent that binds metal ions in formulations, improving product stability and preservative efficacy.