Louisiana Esthetics State Board Practice Test 2026 – Comprehensive Exam Prep

Glycerin is classified as a humectant, which means it has the ability to attract moisture from the air and draw it into the skin. This property makes it particularly effective in skincare products, as it helps to keep the skin hydrated and maintain its moisture balance. Humectants such as glycerin are essential in formulations intended to provide hydration, making them beneficial for individuals with dry or dehydrated skin conditions.

In contrast, emollients are substances that smooth and soften the skin by forming a protective barrier, exfoliants are agents that help remove dead skin cells to reveal fresher skin beneath, and antiseptics are used to prevent infection by inhibiting the growth of microorganisms. While all these types of products serve important roles in skincare, glycerin's primary function lies in its ability to attract and retain moisture, clearly distinguishing it as a humectant.