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Skin Conditioning

HYDROXYSUCCINIMIDYL C21-22 ISOALKYL ACIDATE

62

Safety score · 0–100

Fine

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

A reactive long-chain ester used as a cleansing and conditioning agent — chemically active enough to bond with skin amines. Limited safety data; class is potentially sensitizing.

Function

CLEANSINGHAIR CONDITIONINGHAIR FIXINGHAIR WAVING OR STRAIGHTENINGHUMECTANT

Skin benefits

  • Skin/hair conditioning agent
  • Cleansing function
  • Forms amide bonds with skin amines

Known concerns

  • NHS-ester chemistry is reactive — possible skin sensitization
  • Limited public safety review
  • Reactive intermediates may form residues

References

EU

EU CosIng database

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

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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.