WASHINGTON STATE ESTHETICIAN
WRITTEN EXAM STUDY GUIDE 2026
UPDATED QUESTIONS WITH VERIFIED
ANSWERS GRADED A+
⩥ Surfactants
Answer: Act as a bridge to allow substances to emulsify
⩥ A surfactant molecule has two parts, which are
Answer: Hydrophilic and lipophilic
⩥ Modern synthetic surfactants
Answer: Are superior to traditional soap
⩥ Almost all skin care products are?
Answer: Oil and water emulsions
⩥ Suntan lotion is
Answer: An oil-in-water emulsion
⩥ Once the water and the active ingredients in an emulsion separate
, Answer: The product should be discarded
⩥ An acid is
Answer: A substance with a pH below 7.0
⩥ What do the active agents in facial products do?
Answer: Cleanse and moisturizer, normalize and moisturize, treat and
cleanse
⩥ What distinguishes between drugs and cosmetics
Answer: The Cosmetic Act of 1938
⩥ What is the definition of drugs?
Answer: Products intended to affect the structure and/or function of the
body
⩥ What are the two accepted types of ingredients?
Answer: Functional and performance
⩥ Task that is NOT performed by performance ingredients
Answer: Giving products body and texture
WRITTEN EXAM STUDY GUIDE 2026
UPDATED QUESTIONS WITH VERIFIED
ANSWERS GRADED A+
⩥ Surfactants
Answer: Act as a bridge to allow substances to emulsify
⩥ A surfactant molecule has two parts, which are
Answer: Hydrophilic and lipophilic
⩥ Modern synthetic surfactants
Answer: Are superior to traditional soap
⩥ Almost all skin care products are?
Answer: Oil and water emulsions
⩥ Suntan lotion is
Answer: An oil-in-water emulsion
⩥ Once the water and the active ingredients in an emulsion separate
, Answer: The product should be discarded
⩥ An acid is
Answer: A substance with a pH below 7.0
⩥ What do the active agents in facial products do?
Answer: Cleanse and moisturizer, normalize and moisturize, treat and
cleanse
⩥ What distinguishes between drugs and cosmetics
Answer: The Cosmetic Act of 1938
⩥ What is the definition of drugs?
Answer: Products intended to affect the structure and/or function of the
body
⩥ What are the two accepted types of ingredients?
Answer: Functional and performance
⩥ Task that is NOT performed by performance ingredients
Answer: Giving products body and texture