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CYCAS REVOLUTA LEAF POWDER

CAS -
35

Safety score · 0–100

Caution

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

About

Leaf powder from the sago palm, a prehistoric plant used in traditional skincare and herbal preparations.

Cycas revoluta (sago palm) leaves contain the carcinogenic glucoside cycasin and the neurotoxin beta-N-methylamino-L-alanine (BMAA). Cycasin is listed in EU Annex II (prohibited substances) in some contexts due to its genotoxicity and carcinogenicity. The presence of both cycasin and BMAA makes this ingredient particularly concerning for cosmetic use, as topical application of cyanogenic compounds poses absorption and systemic exposure risks that are not adequately characterised.

Known concerns

  • EU Annex II cycasin concern (genotoxic carcinogen)
  • BMAA neurotoxin
  • carcinogenic compound
  • significant safety concern for cosmetic use

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.