Sodium Magnesium Silicate

Sodium Magnesium Silicate is a clay-like mineral silicate made of layered sheets containing sodium and magnesium. It's used to build viscosity, suspend pigments, and improve texture uniformity in creams, gels, and color cosmetics.
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Ingredient Snapshot

Overview
A clay-like mineral that thickens formulas and disperses pigments.
Category
Tone/Texture
Type
Rheology Modifier

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

It creates a thicker, more stable feel and helps keep pigments evenly dispersed for consistent application, supporting a uniform, non-runny texture in finished products.

Uses In Skincare & Cosmetics

It's common in gels, lotions, and clay masks as a structuring agent, and used in liquid foundations and cream color cosmetics to maintain smooth spread and prevent settling.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

It carries low irritation risk for most people; heavy use can feel drying or tight on very dry skin. In powder form, avoid inhalation during application. No widely cited regulatory restrictions apply at cosmetic levels.

Is Sodium Magnesium Silicate a Good Ingredient?

It rates Good as a well-established, inert mineral rheology modifier that reliably builds viscosity and stabilizes dispersions with low irritation potential. Its stability and broad formulation compatibility support consistent texture without notable sensitization in most users.

Products with Sodium Magnesium Silicate

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