Esthetician Practice Exam FREE Esthetician Practice Cosmetic Chemistry and Ingredients Questions and Answers 2

Question 1

Which ingredient is commonly used as a humectant in skincare products to attract moisture from the environment?

Accepted Answer

Hyaluronic acid

Answer

Hyaluronic acid is a powerful humectant that can hold up to 1,000 times its weight in water, drawing moisture from the surrounding environment into the skin.

Question 2

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

Accepted Answer

To blend oil and water phases together

Answer

Emulsifiers reduce the surface tension between oil and water, allowing them to mix into a stable, uniform product.

Question 3

Which of the following is classified as an occlusive moisturizing agent?

Accepted Answer

Petrolatum

Answer

Petrolatum is an occlusive agent that forms a physical barrier on the skin's surface to prevent transepidermal water loss.

Question 4

What role does tocopherol play in cosmetic formulations?

Accepted Answer

It serves as an antioxidant and helps stabilize the product

Answer

Tocopherol, a form of vitamin E, protects both the skin and the product itself from oxidative damage caused by free radicals.

Question 5

Which acid is a beta hydroxy acid (BHA) commonly used to treat acne-prone skin?

Accepted Answer

Salicylic acid

Answer

Salicylic acid is the most widely used BHA in skincare and is oil-soluble, allowing it to penetrate into clogged pores to reduce breakouts.

Esthetician Practice Exam Practice Test

Esthetician Practice Exam Practice Test

Esthetician Practice Exam FREE Esthetician Practice Cosmetic Chemistry and Ingredients Questions and Answers 2