Other
levomethorphan
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Levomethorphan is a cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.
Levomethorphan is the l-isomer of methorphan, used medically as a cough suppressant with opioid-like activity. It is not listed in EU cosmetic regulation annexes but is pharmacologically active in a manner similar to other opioid derivatives prohibited in cosmetics. EU regulatory guidance would treat this as a prohibited pharmacological substance under the general provision of Annex II.
Known concerns
- Opioid-like CNS effects
- Abuse potential
- Not approved for cosmetic use in EU
- Possible respiratory effects at systemic exposure
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related others
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.