Antioxidant
HYDROXYPHENYL HYDROXYMETHOXYISOINDOLINONE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A hydroxylated, methoxylated isoindolinone antioxidant — a close relative of other specialty isoindolinone antioxidants. Limited public safety data.
Hydroxyphenyl hydroxymethoxyisoindolinone is a synthetic small-molecule antioxidant in the isoindolinone chemical class, closely related to other specialty antioxidants such as hydroxyphenyl dimethoxyisoindolinone. It is proposed for oxidative-stress protection in cosmetic formulations, typically at low use levels. No SCCS or CIR review is publicly available for this specific derivative. No GHS hazard profile identified at cosmetic-grade purity, but independent toxicology and human safety data are thin. Use is generally niche, in boutique antioxidant-focused products.
Function
Skin benefits
- Synthetic isoindolinone antioxidant
- Plausible photoprotective activity
- Stable across typical formulation pH range
Known concerns
- Specialty ingredient with narrow safety literature
- No SCCS or CIR review
- Independent efficacy data limited
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related antioxidants
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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.