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Skin Conditioning

ORIGANUM VULGARE LEAF

CAS 84012-24-8
62

Safety score · 0–100

Fine

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

About

Oregano leaf — rich in carvacrol and thymol, giving antioxidant and antimicrobial activity but real potential for irritation and contact sensitization.

Origanum vulgare leaf is the dried foliage of common oregano, a Lamiaceae herb. Its composition is dominated by carvacrol and thymol monoterpene phenols, which have documented antimicrobial and antioxidant activity but are also well-recognized skin and mucous membrane irritants at elevated levels. EU CosIng lists the ingredient without specific restriction; however, related oregano essential oil is flagged by IFRA/SCCS for irritation. Formulators should treat leaf extracts containing appreciable carvacrol/thymol with caution, especially in leave-on or near-eye products.

Skin benefits

  • Carvacrol/thymol antimicrobial activity
  • Antioxidant phenolics
  • Traditional herbal use

Known concerns

  • Carvacrol and thymol are potent sensitizers
  • Possible mucosal irritation
  • Essential oil residues in extracts

References

EU

EU CosIng database

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

Related skin conditionings

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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.