Magnesium Silicate ●
TL;DR. This ingredient is primarily used as an absorbent, anti-caking agent, bulking agent, and slip enhancer in powders, color cosmetics, and deodorant-style formulas.
What does Magnesium Silicate do in a cosmetic formula?
This ingredient is primarily used as an absorbent, anti-caking agent, bulking agent, and slip enhancer in powders, color cosmetics, and deodorant-style formulas.
Is Magnesium Silicate clean?
It is generally well tolerated on skin and is not a common sensitizer. Clean-beauty scrutiny centers on respirable powder exposure and supplier testing that confirms mineral impurities such as asbestos are not present.
Is Magnesium Silicate sustainable?
This material is mineral-derived, so it is not renewable and does not biodegrade in the usual organic-material sense. It is environmentally stable and inert, with sustainability mainly tied to responsible mining, dust control, and traceability.
Is Magnesium Silicate COSMOS-approved?
It is generally permitted under COSMOS-natural and COSMOS-organic when sourced and processed as an allowed mineral ingredient and supported by purity documentation. From a Green Chemistry view, it scores well for inertness and low reactivity, but less well on renewability and end-of-life biodegradation.
How does Magnesium Silicate work chemically?
The molecule is an inorganic, insoluble mineral powder built from hydrated metal cations and polymerized tetrahedral oxide networks, giving it high surface area and oil-absorbing behavior. It is typically stable across cosmetic pH ranges, used at low single-digit levels for texture or much higher in loose powders, and requires particle-size control for pressed, loose, or aerosol-adjacent formats.
Last updated 2026-05-14