Hair Conditioning
BIS-HYDROXY/METHOXY/METHYL AMODIMETHICONE CROSSPOLYMER
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A modified amodimethicone silicone — gives hair a smooth, silky feel with less buildup than simple amodimethicones.
Bis-hydroxy/methoxy/methyl amodimethicone crosspolymer is an amino-functional silicone with mixed hydroxyl, methoxy and methyl substitution, crosslinked into a larger polymer. The amine groups bind to negatively charged hair, delivering conditioning; the mixed substitution and crosslinking reduce buildup compared with simple amodimethicone. CIR reviews of amodimethicone-family ingredients are supportive of cosmetic safety. No EU Annex II/III listing. Methoxy groups hydrolyse slowly to release small amounts of methanol — well within cosmetic safety limits at use concentrations.
Function
Skin benefits
- Silky hair feel
- Reduced buildup vs classic amodimethicone
- Long-wear conditioning
Known concerns
- Silicone persistence
- Slow methoxy hydrolysis (minor)
- Possible gradual buildup
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related hair conditionings
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.