Skincare Skincare Ingredients

Question 1

Which vitamin A derivative is widely used in anti-aging skincare to increase cell turnover?

Accepted Answer

Retinol

Answer

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?

Accepted Answer

Ascorbic acid

Answer

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?

Accepted Answer

Hydration and moisture retention

Answer

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?

Accepted Answer

Hydroquinone

Answer

Hydroquinone inhibits tyrosinase, the enzyme needed for melanin production, effectively reducing hyperpigmentation.

Question 5

Niacinamide is a form of which vitamin?

Accepted Answer

Vitamin B3

Answer

Niacinamide is a form of vitamin B3 that helps reduce pore appearance, even skin tone, and strengthen the skin barrier.

Skincare Practice Test