Kansas Cosmetology Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Antioxidants play a vital role in skincare products primarily by preventing damage from free radicals. Free radicals are unstable molecules that can harm skin cells, leading to signs of aging such as wrinkles, fine lines, and a loss of elasticity. They are often produced by environmental factors like UV radiation, pollution, and smoking.

When antioxidants are applied to the skin, they neutralize these free radicals by donating an electron, thus reducing oxidative stress and preventing cell damage. This protective action helps maintain a healthier and more youthful appearance of the skin.

In contrast, while adding moisture to the skin is important for hydration, it is the antioxidants that specifically target and combat the harmful effects of free radicals. Changing skin pigmentation does not relate to the antioxidant function, as this process involves other mechanisms. Similarly, tightening skin texture is associated with ingredients that promote collagen production or provide a temporary tightening effect, rather than the actions of antioxidants.

The primary function of antioxidants in skincare is crucial because they contribute significantly to protecting the skin from premature aging and maintaining its overall health.