Utah Esthetician State Board Practice Exam

What is a humectant?

1. A substance that repels water

2. A water-loving substance

3. A type of skin treatment

4. A chemical compound

The correct answer is: A water-loving substance

A humectant is defined as a substance that has the ability to attract and hold water molecules. This characteristic makes humectants incredibly valuable in skincare and cosmetic formulations. They draw moisture from the environment into the skin, helping to maintain hydration and improve the skin's overall texture and elasticity. In practice, ingredients like glycerin, hyaluronic acid, and aloe vera are commonly used as humectants in various products, such as moisturizers and serums. The role of a humectant is crucial, especially in dry climates or for individuals with dehydrated skin, as these ingredients help to restore moisture levels and prevent water loss. The other choices do not accurately describe the properties or functions of a humectant, as they either refer to substances with opposing properties, types of treatments, or broader categories of compounds, rather than specifically addressing the moisture-attracting capability that defines humectants. Understanding humectants and their role in skincare is essential for effective product formulation and skincare regimens.