Magnesium Aluminum Silicate

Magnesium aluminum silicate is a naturally occurring layered clay mineral used in personal care formulations to thicken and stabilize mixtures, suspend particles, and mattify oily textures for a smoother application.
Like this ingredient?

Ingredient Snapshot

Overview
A clay mineral that controls shine and smooths how products feel.
Category
Oil Control, Cleansing
Type
Clay

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Controls surface shine and helps products feel smoother on the skin, improving texture for a more even, non-greasy finish.

Uses In Skincare & Cosmetics

Used in clay masks, cleansers, lotions, and liquid foundations to aid uniform application and keep formulas from separating.

Comedogenic Rating

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

Safety

Considered inert and non-penetrating with low irritation potential, though frequent use in high concentrations may feel drying. No common regulatory limitations in cosmetics.

Is Magnesium Aluminum Silicate a Good Ingredient?

It's an effective mineral thickener and absorber that improves stability and reduces shine, which is enough for a Good rating, though the benefits are mostly formulation-driven rather than direct skin treatment.