Snapshot
- Overview
- A pH adjuster used in processing with no direct skin benefit.
- Category
- Tone/Texture
- Type
- pH Adjuster
Ammonium Hydroxide
This is an aqueous solution of ammonia used in cosmetics as a volatile base and pH adjuster during processing. Small amounts raise alkalinity, guide neutralization for texture control, and volatilize out of the finished formula.
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Our take
Is Ammonium Hydroxide a Good Ingredient?
This rates Fair: Effective as a processing pH adjuster with no direct skin benefit, and its volatility helps limit residue in finished products. However, it carries a meaningful irritation risk, especially at higher concentrations or elevated final formula pH.
What it does
Skin Benefits
Helps maintain consistent product feel and performance by fine-tuning formula pH; it offers no direct skin benefit. Can improve application quality when correctly balanced, though higher levels may increase irritation risk.
Where you'll find it
Uses in Skincare & Cosmetics
Employed during production of creams, gels, and lotions to adjust pH. Also used in hair dyes and certain styling products as a processing aid under controlled conditions.
Before you use it
Safety
Can irritate skin, eyes, and the respiratory tract; the irritation risk is higher in high-pH or misused formulations. In finished cosmetics it is used sparingly and often volatilizes, reducing residual exposure, but sensitive users may still experience stinging. Avoid contact with compromised skin.
Products with Ammonium Hydroxide
