Louisiana Esthetics State Board Practice Test

What are fatty acids commonly added to?

1. Cleansers

2. Creams

3. Serums

4. Exfoliators

The correct answer is: Creams

Fatty acids are commonly added to creams because they play a pivotal role in skin hydration and barrier repair. These natural compounds help to strengthen the skin's moisture barrier, preventing water loss and ensuring that the skin remains hydrated and supple. Creams are formulated to provide a thicker, emollient texture that often benefits from the inclusion of fatty acids, making them ideal for dry or dehydrated skin types. In addition to their hydrating properties, fatty acids can also support the skin’s overall health by providing essential nutrients and improving the skin's texture. Creams, which are often meant to offer more intensive moisture and protection over time, greatly benefit from the incorporation of these ingredients. In contrast, while cleansers and exfoliators may contain fatty acids for particular benefits, their primary purposes don't typically revolve around moisture retention like creams do. Serums, being more lightweight and designed for targeted treatment, may have different formulations that prioritize other active ingredients over fatty acids. Thus, creams stand out as the most common formulation where fatty acids are utilized for their beneficial effects on the skin.