Texas Cosmetology Operator Written ExamChemistryHard
A cosmetologist is educating a client about the ingredients in their new anti-aging serum. The serum contains 'tocopherol' and 'ascorbic acid'. These ingredients are primarily included for their ability to neutralize free radicals and protect cells from damage. What class of ingredients do these compounds belong to?
- AChelating agents
- BEmollients
- CAntioxidants
- DExfoliants
Show answer & explanationAnswer & explanation
Correct answer: C. Antioxidants
Tocopherol (Vitamin E) and ascorbic acid (Vitamin C) are well-known antioxidants. Antioxidants are substances that can prevent or slow damage to cells caused by free radicals, unstable molecules that the body produces as a reaction to environmental and other pressures.
Why the other options are wrong
- A. Chelating agents bind to metal ions, often used to prevent product discoloration or enhance stability.
- B. Emollients soften and smooth the skin by forming a protective barrier.
- D. Exfoliants remove dead skin cells from the skin's surface.
Antioxidants
Molecules that inhibit the oxidation of other molecules, thereby preventing or slowing down cellular damage caused by free radicals.
- Neutralize free radicals
- Protect against environmental damage
- Common examples: Vitamin C, Vitamin E, green tea extract
Memory trick: Antioxidants Act Against Aging.