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Humectant

SODIUM BUTYROYL/FORMOYL HYALURONATE

CAS 100201-66-0 Updated
86

Safety score · 0–100

Good

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

About

Hyaluronic acid esterified with butyric and formic acids — penetrates deeper than standard HA for stronger hydration. Excellent skin tolerance, building on HA's strong cosmetic safety record.

Function

HUMECTANT

Skin benefits

  • Modified hyaluronic acid with deeper penetration
  • Strong hydration and skin plumping
  • Slow-release moisture support
  • Mild on most skin types

Known concerns

  • Possible mild stinging on highly compromised skin
  • Limited published peer-reviewed dossier on this exact ester

References

EU

EU CosIng database

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

Related humectants

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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.