Oxidiser
HYDROGEN PEROXIDE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A potent oxidiser used in hair colouring, bleaching and tooth whitening. Safe and effective at strict EU concentration caps but corrosive and irritating if misused — never a general skincare ingredient.
Skin benefits
- Effective oxidiser for hair colouring and bleaching
- Used at strict EU caps for teeth whitening
- Antiseptic action at low concentrations
Known concerns
- Corrosive and damaging at higher concentrations
- Skin and eye irritant
- EU Annex III limits — max 12% in hair, 0.1% in oral care for general consumers
- Damages hair structurally over time
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
PubChem
U.S. NIH compound data, GHS hazard codes and toxicity literature.
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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.