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Hair Conditioning

KERATIN

CAS 68238-35-7
80

Safety score · 0–100

Good

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

A structural protein, usually from wool or feathers, used to condition hair and skin. Forms a protective film on hair; not vegan.

Function

HAIR CONDITIONINGSKIN CONDITIONING

Skin benefits

  • Hair- and skin-conditioning protein
  • Forms protective film on hair fibers
  • Improves combability and shine

Known concerns

  • Animal-derived (typically wool/feather) — not vegan
  • Hydrolyzed forms may concern users with related allergies
  • No major safety issues at cosmetic levels

References

EU

EU CosIng database

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

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AMINOPROPYL PHENYL TRIMETHICONE
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AMODIMETHICONE
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AMODIMETHICONE HYDROXYSTEARATE
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BIS-HYDROXY/METHOXY/METHYL AMODIMETHICONE CROSSPOLYMER
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BIS-PEG-8 PEG-8 DIMETHICONE
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BIS-PHENYLPROPYL DIMETHICONE
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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.