Astringent
AMMONIUM ALUM
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Ammonium alum, the classic mineral deodorant and aftershave styptic. Effective astringent; mainstream cosmetic use is well tolerated although aluminium debate persists.
Function
Skin benefits
- Astringent and natural deodorant
- Reduces underarm sweat and odor
- Used in shaving aftercare to stop minor bleeds
Known concerns
- Aluminium-containing salt — debated long-term exposure questions
- Can dry or irritate sensitive skin
- Not advised on broken skin
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related astringents
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.