Chelating Agent
OXYQUINOLINE SULFATE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An 8-hydroxyquinoline salt used as a chelator and stabiliser in hair-colour formulas. EU-restricted with reproductive-toxicity warnings, so it is limited to specific concentrations and product types.
Function
Skin benefits
- Strong metal chelator
- Helps stabilise hydrogen-peroxide formulas
- Mild antimicrobial activity
- Used in hair colour and oxidative products
Known concerns
- Reproductive toxicity flag in PubChem GHS
- Restricted in EU cosmetic Annex III
- Possible allergic contact dermatitis
- Limited use levels imposed by SCCS
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related chelating agents
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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.