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Skin Conditioning

TANNIC ACID

CAS 1401-55-4 Updated
58

Safety score · 0–100

Moderate

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

About

A potent plant polyphenol with strong astringent and antimicrobial action. Skin-safe at low cosmetic levels but drying and staining at higher concentrations; not for daily leave-on.

Function

ASTRINGENTFRAGRANCE

Skin benefits

  • Astringent
  • Antioxidant polyphenol
  • Antimicrobial
  • Traditional wound care use

Known concerns

  • Strong astringency — skin tightening/drying
  • Can stain skin
  • Possible skin irritation at high %
  • Tannin-protein binding may dry tissue

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 — always read the physical product label and consult a healthcare professional for personal concerns.