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Humectant

DIOSCOREA POLYSTACHYA EXTRACT

Updated
82

Safety score · 0–100

Good

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

About

Chinese yam (nagaimo) extract — an edible Dioscorea root rich in mucilaginous polysaccharides and diosgenin. Long food-grade history yields a green safety profile with only minor caveats.

Function

SKIN CONDITIONING

Skin benefits

  • Mucin polysaccharides for hydration
  • Diosgenin and saponin actives
  • Antioxidant phenolics
  • Skin-soothing in vitro activity

Known concerns

  • Possible mild irritation at high concentrations
  • Standardization varies

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.