Magnesium Stearate

A multifunctional ester that thickens and prevents clumping.
Functions
Origin
Magnesium Stearate

Overview

Magnesium stearate is an ester of magnesium and stearic acid.

This white powder is primarily used in emulsions to control viscosity through thickening. The thickening behavior of this ingredient is due in part to the long and linear carbon chains that provide bulking character to various skincare products.

In addition, magnesium stearate acts as an anticaking agent, in which it prevents powdered products from forming clumps. This ingredient is also used as a colorant in some cases, due to its white appearance along with its ability to create an opaque appearance.