Cetyl Dimethicone

Cetyl dimethicone is a silicone-based liquid ingredient that acts as both a moisturizer and an emollient.

The moisturization of cetyl dimethicone comes from its occlusive nature, in which it locks water into the skin by forming a protective layer. Skin products with moisturizers like this are more moisturizing than skin products that only contain humectant ingredients.

Cetyl dimethicone can also act as an emollient due to its oily character. This means it keeps the skin feeling soft and smooth, even without water present.

Finally, cetyl dimethicone also functions as an anti-foaming agent, where it reduces foaming behavior in products where foam is less desirable.