pH Adjuster
ISOBUTYRIC ACID
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A small branched fatty acid used to adjust pH and impart trace fragrance. Concentrate is irritating and odorous, but use levels in cosmetics are very low. Common in nature (butter, sweat).
Function
Skin benefits
- pH adjustment
- Trace fragrance
Known concerns
- Skin and eye irritation in concentrate
- Strong rancid odor
- Acute toxicity at high exposure
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.