A skin conditioning agent often used to thicken lubricants and cosmetics. It is composed of glycerin and behenic acid, which is a natural fatty acid derived from plants.

Tribehenin is considered safe and non-toxic. It does not appear to accumulate in the body, allergies are extremely rare, and it does not increase users’ chances of developing yeast infections or other conditions. However, people with glycerin allergies should avoid products with tribehenin.