Skincare Skincare Ingredients 1 — Questions and Answers
Question 1: Which vitamin A derivative is widely used in anti-aging skincare to increase cell turnover?
- Niacinamide
- Retinol (Correct answer)
- Ascorbic acid
- Tocopherol
Correct answer: Retinol
Retinol is a form of vitamin A that accelerates cell turnover and stimulates collagen production to reduce signs of aging.
Question 2: What is the INCI (International Nomenclature of Cosmetic Ingredients) name for vitamin C?
- Tocopherol
- Retinyl palmitate
- Ascorbic acid (Correct answer)
- Panthenol
Correct answer: Ascorbic acid
Ascorbic acid is the INCI name for vitamin C, a potent antioxidant used in skincare for brightening and collagen synthesis.
Question 3: Hyaluronic acid is primarily used in skincare products for which purpose?
- Exfoliation
- Sun protection
- Hydration and moisture retention (Correct answer)
- Reducing acne bacteria
Correct answer: Hydration and moisture retention
Hyaluronic acid is a humectant that can hold up to 1,000 times its weight in water, making it ideal for hydration.
Question 4: Which ingredient is commonly used to treat hyperpigmentation by inhibiting the tyrosinase enzyme?
- Salicylic acid
- Glycolic acid
- Hydroquinone (Correct answer)
- Benzoyl peroxide
Correct answer: Hydroquinone
Hydroquinone inhibits tyrosinase, the enzyme needed for melanin production, effectively reducing hyperpigmentation.
Question 5: Niacinamide is a form of which vitamin?
- Vitamin A
- Vitamin C
- Vitamin B3 (Correct answer)
- Vitamin E
Correct answer: Vitamin B3
Niacinamide is a form of vitamin B3 that helps reduce pore appearance, even skin tone, and strengthen the skin barrier.
Question 6: Which acid is a beta-hydroxy acid (BHA) commonly used to treat acne due to its oil-soluble properties?
- Glycolic acid
- Lactic acid
- Mandelic acid
- Salicylic acid (Correct answer)
Correct answer: Salicylic acid
Salicylic acid is a BHA that dissolves in oil, allowing it to penetrate pores and exfoliate from within to treat acne.
Skincare Skincare Ingredients 1
Which vitamin A derivative is widely used in anti-aging skincare to increase cell turnover?