FREE Esthetician Practice Cosmetic Chemistry and Ingredients Questions and Answers

Question 1

A client with oily, congested, and acne-prone skin is looking for a chemical exfoliant.
Which of the following ingredients would be MOST beneficial due to its oil-solubility and ability to exfoliate inside the pore lining?

Accepted Answer

Salicylic Acid

Answer

Glycolic Acid

Answer

Lactic Acid

Answer

Mandelic Acid

Question 2

When examining the ingredient label of a cosmetic product, how are the ingredients required to be listed according to INCI regulations?

Accepted Answer

In descending order of predominance by weight

Answer

Alphabetically by their common name

Answer

Grouped by function (e.g., all preservatives together)

Answer

In ascending order of concentration

Question 3

Lotions and creams are examples of what type of cosmetic formulation, which consists of two or more immiscible substances (like oil and water) united with the aid of a binder?

Accepted Answer

Emulsions

Answer

Solutions

Answer

Suspensions

Answer

Anhydrous bases

Question 4

A client with dehydrated skin would benefit most from products containing ingredients that attract and bind water to the skin. Which of the following ingredients is a powerful humectant known for this property?

Accepted Answer

Hyaluronic Acid

Answer

Petrolatum

Answer

Dimethicone

Answer

Cetyl Alcohol

Question 5

What is the primary function of antioxidants, such as Vitamin C and Vitamin E, in a skincare formulation?

Accepted Answer

To neutralize free radicals and prevent oxidative damage

Answer

To act as surfactants for cleansing purposes

Answer

To increase the pH of the product for better penetration

Answer

To bind water to the epidermis for hydration

Question 6

A client asks for a recommendation for a "physical" sunscreen because they have sensitive skin. Which of the following active ingredients would you look for on the product label?

Accepted Answer

Zinc Oxide

Answer

Avobenzone

Answer

Oxybenzone

Answer

Octinoxate

A client with oily, congested, and acne-prone skin is looking for a chemical exfoliant.Which of the following ingredients would be MOST beneficial due to its oil-solubility and ability to exfoliate inside the pore lining?

A client with oily, congested, and acne-prone skin is looking for a chemical exfoliant.
Which of the following ingredients would be MOST beneficial due to its oil-solubility and ability to exfoliate inside the pore lining?