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Antimicrobial

LEPTOSPERMUM SCOPARIUM BRANCH/LEAF OIL

CAS 223749-44-8 Updated
55

Safety score · 0–100

Moderate

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

About

Manuka essential oil from New Zealand — prized for strong antimicrobial activity against Malassezia and gram-positive bacteria. Triketone constituents (leptospermone, flavesone) are documented skin sensitizers.

Function

TONIC

Skin benefits

  • Strong antimicrobial activity (especially against gram-positives)
  • Antifungal action vs Malassezia and Candida
  • Traditional Maori and modern aromatherapy use
  • Useful in spot/blemish formulations

Known concerns

  • Triketone compounds (leptospermone, flavesone) are documented sensitizers
  • Contact-dermatitis cases reported
  • Strict use-level capping required
  • Not for use on broken or compromised skin

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.