pH Adjuster
3-AMINOPROPANE SULFONIC ACID
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A small zwitterionic amino sulfonic acid (homotaurine) acting as a buffer and mild surfactant. Inherently low-toxicity small molecule; data specific to cosmetic use is limited.
Function
Skin benefits
- Zwitterionic small molecule — pH buffer and mild surfactant
- Skin-compatible amino sulfonic acid
- Improves stability of formulations
Known concerns
- Limited cosmetic-specific safety data
- Some reports of mild eye irritation at high concentrations
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related ph adjusters
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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.