Magnesium Stearate ●
TL;DR. This ingredient is used as a powder flow aid, binder, slip agent, and adhesion enhancer in pressed powders, eye products, and complexion formulas. It helps powders press cleanly, feel smoother, and release more evenly from a pan or compact.
What does Magnesium Stearate do in a cosmetic formula?
This ingredient is used as a powder flow aid, binder, slip agent, and adhesion enhancer in pressed powders, eye products, and complexion formulas. It helps powders press cleanly, feel smoother, and release more evenly from a pan or compact.
Is Magnesium Stearate clean?
This ingredient is generally well-tolerated and has little clean-standard friction when purity specs are met. The main watchpoints are source transparency for the fatty-acid feedstock and limits on trace impurities.
Is Magnesium Stearate sustainable?
This material is made from a mineral component and long-chain fatty acids that may come from palm, other vegetable oils, or animal fats. The fatty portion is biodegradable, while sustainability depends mostly on feedstock sourcing and supplier traceability.
Is Magnesium Stearate COSMOS-approved?
It is generally compatible with COSMOS-style natural formulations when made from permitted mineral and natural-origin fatty-acid inputs. From a Green Chemistry view, it is a simple salt with low use levels and good biodegradability for the organic fraction, though palm-linked sourcing can affect its overall profile.
How does Magnesium Stearate work chemically?
The molecule is a divalent metal soap, meaning two long saturated fatty-acid chains are paired with one mineral cation, giving it a waxy, water-insoluble powder character. It is typically used at low single-digit levels in anhydrous and powder systems, where it improves slip, pressability, payoff, and adhesion without meaningful pH dependence.
Last updated 2026-05-13