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Hair Conditioning

WOOL CUTICLE AMINO ACIDS

Updated
84

Safety score · 0–100

Good

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

About

Cysteine- and serine-rich amino acids hydrolysed from the cuticle layer of wool. Acts as a hair conditioner and skin humectant; the cysteine content supports disulphide-bond restoration in damaged hair.

Function

HAIR CONDITIONINGHUMECTANTSKIN CONDITIONING

Skin benefits

  • Cysteine-rich for hair-bond support
  • Humectant on skin
  • Conditions hair cuticle

Known concerns

  • Animal-derived (wool) — sourcing/quality variability
  • Rare protein-hydrolysate sensitisation

References

EU

EU CosIng database

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

Related hair conditionings

84
DISODIUM AMODIMETHICONE DISUCCINAMIDE
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ETHYL BIOTINATE
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HIPPURIC ACID
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 84
HYDROLYZED COLLAGEN PG-PROPYL DIMETHICONOL
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METHYL ASPARTIC ACID
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OLIGOPEPTIDE-251
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OLIGOPEPTIDE-288
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 84
OLIGOPEPTIDE-91 SH-POLYPEPTIDE-2
Hair Conditioning

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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.