Snapshot
- Overview
- This clay gives sticks and balms a stable, easy-to-apply texture.
- Category
- Tone/Texture, Oil Control
- Type
- Rheology Modifier
Quaternium-90 Bentonite
Quaternium-90 Bentonite is a surface-treated bentonite clay bearing quaternary ammonium groups. Formulators use it in anhydrous sticks, waxes, and emulsions to build structure, control flow, prevent pigment settling, and improve spreadability.
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Our take
Is Quaternium-90 Bentonite a Good Ingredient?
Good, for dependable structure-building in anhydrous sticks and balms, aiding pigment suspension and reducing greasiness with a low likelihood of irritation. It's not Great because the benefits are primarily textural, and cationic clays can rarely trigger sensitivity in reactive skin.
What it does
Skin Benefits
Gives sticks and balms a stable, cohesive feel that applies evenly, and helps color look consistent on skin while reducing greasy feel in heavier formulas.
Where you'll find it
Uses in Skincare & Cosmetics
Common in stick deodorants, balmy primers, and wax-based makeup for improved solidity, and also used in sunscreens and rich creams to boost texture and payoff.
Before you use it
Safety
Generally low irritation potential, but minor stinging or redness can occur on very sensitive skin due to the cationic surface treatment. Minimize inhalation of fine powder during manufacturing or application. No specific regulatory limits commonly cited for cosmetic use.
Products with Quaternium-90 Bentonite
