Louisiana Esthetics State Board Practice Test 2025 – All-In-One Guide to Master Your Exam Success!

Glycolic acid is an alpha-hydroxy acid (AHA) known for its ability to effectively exfoliate the skin. This exfoliation occurs because glycolic acid penetrates the outer layer of the skin and works by breaking down the bonds that hold dead skin cells together. As these bonds are loosened, the dead skin cells are more easily sloughed off, revealing fresher, healthier skin underneath. This process not only improves skin texture and tone but can also help promote cell turnover, leading to a brighter complexion and improved overall skin health.

While glycolic acid may have some hydrating effects due to its ability to enhance moisture retention in the skin, its primary and most significant effect is its exfoliating properties. The assertion that it protects against UV damage or enhances skin elasticity relates to other skincare ingredients rather than the specific action of glycolic acid. Thus, its major role in skincare is as an exfoliator, making the chosen answer the most accurate reflection of its effects on the skin.