Beheneth-20

Beheneth-20 Description

Beheneth-20 is a synthetic polymer used in cosmetics as both an emulsifier and a surface-active agent, or surfactant. This means it both keeps unlike ingredients from separating in an emulsion (such as oil and water), and helps suspend soil, allowing it to rinse away from skin (helpful in cleanser formulations).

The independent Cosmetic Ingredient Review has ruled beneneth-20 safe in its current usage in cosmetics, where it is used in amounts ranging from 0.7-2%.