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Antioxidant

REYNOUTRIA SACHALINENSIS RHIZOME/ROOT EXTRACT

72

Safety score · 0–100

Fine

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

Giant knotweed root extract — a source of resveratrol and emodin. Used for antioxidant skin conditioning. EFSA reviewed it as low acute toxicity, non-sensitizing, and not a known endocrine disruptor.

Function

SKIN CONDITIONING - EMOLLIENT

Skin benefits

  • Resveratrol and phenolic antioxidants
  • Skin conditioning and hydration
  • Low acute toxicity per EFSA review
  • Documented antimicrobial activity

Known concerns

  • Contains emodin (anthraquinone) — mild laxative oral effect, not a topical concern at use levels
  • Variable composition across batches

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, so always read the physical product label and consult a healthcare professional for personal concerns.