Fragrance
POLYGONUM ODORATUM OIL
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Vietnamese coriander (rau ram) essential oil — a distinctive herbal-citrus scent rich in aldehydes. Sensitisation risk limits use.
Polygonum odoratum (Vietnamese coriander / rau ram) oil is a distinctive herbal essential oil dominated by aliphatic aldehydes (decanal, dodecanal and related C10-C14 chains). Aldehyde-rich essential oils tend to have elevated skin-sensitisation potential, so IFRA monitors class restrictions and leave-on cosmetic use is typically very limited. No EU Annex II listing for the oil, but Annex III labelling applies for declared allergens among its minor constituents. Cosmetic-specific publication is thin (low evidence).
Function
Skin benefits
- Distinctive scent contribution
Known concerns
- Aldehyde-driven sensitisation risk
- Variable composition
- IFRA-monitored
- Leave-on use caveats
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related fragrances
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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.