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CARVACROL

CAS 499-75-2
55

Safety score · 0–100

Moderate

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

About

Carvacrol is a cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.

Carvacrol (2-methyl-5-isopropylphenol) is a naturally occurring phenolic monoterpene found in the essential oils of Origanum and Thymus species. The EU Cosmetics Regulation Annex III lists carvacrol among the substances for which specific restrictions apply in cosmetic products. Carvacrol is classified as a skin sensitizer (H317) and is subject to concentration limits in certain product types. Its phenolic nature also raises concerns regarding potential irritation and photosensitization. IFRA restricts its use in fragrance applications due to sensitization potential.

Skin benefits

  • Natural antioxidant properties
  • Antimicrobial activity against certain skin bacteria

Known concerns

  • Skin sensitizer (H317 - may cause allergic skin reaction)
  • EU Annex III restricted (specific concentration limits apply)
  • Phenolic irritant potential
  • Photosensitization concern

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.