Emulsifier
POLYHYDROXYSTEARIC ACID
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A polymer of stearic acid used to disperse mineral UV filters and pigments evenly. CIR-reviewed safe in cosmetics; common in mineral sunscreens and tinted creams.
Function
Skin benefits
- Excellent dispersant for mineral SPF and pigments
- Stable in sunscreens
- Smooth texture without heaviness
Known concerns
- Synthetic polymer; biodegradability less defined
- Variable supplier grades
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related emulsifiers
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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.