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Hair Conditioning

HAIR KERATIN AMINO ACIDS

78

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

Amino acids hydrolysed from human hair keratin, providing a profile close to native hair composition for repair and conditioning. Functionally safe; sourcing is the more notable consideration.

Function

HAIR CONDITIONINGSKIN CONDITIONING

Skin benefits

  • Conditioning amino acids close to hair's native composition
  • Humectant effect on skin and hair
  • Used at low % in hair-repair products

Known concerns

  • Sourced from human hair — sourcing/sustainability questions
  • Protein-hydrolysate sensitisation possible in rare cases

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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AMINOETHYLAMINOPROPYL PEG-6 DIMETHICONE
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AMP-ISOSTEAROYL HYDROLYZED KERATIN
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BEHENAMIDOPROPYL DIMETHYLAMINE
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BEHENAMIDOPROPYL DIMETHYLAMINE LACTATE
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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.