Oregon Esthetician State Board

Which group of substances creates a non-comedogenic protective film on the skin?

1. Fatty acids

2. Silicones

3. Amino acids

4. Preservatives

The correct answer is: Silicones

Silicones are known for their ability to create a protective barrier on the skin that is non-comedogenic, meaning they do not clog pores. This characteristic makes them a favored ingredient in skincare and cosmetic products, as they provide a smooth application and enhance hydration while allowing the skin to breathe. Silicones form a lightweight film that helps to lock in moisture and protect the skin from environmental irritants. In contrast, fatty acids, while beneficial for hydration, do not typically form the same type of protective film. Amino acids are essential for skin health and can aid in repair and hydration, but they do not create a barrier similar to silicones. Preservatives are primarily used to prevent microbial growth in products and do not act to create a protective film on the skin. Therefore, silicones stand out as the group of substances specifically providing a non-comedogenic barrier.