Antioxidant
POLYGONUM TINCTORIUM FLOWER EXTRACT
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Flower extract from Japanese indigo, used for its pigments and antioxidant character. Generally well tolerated, but strong color and limited modern safety data keep it in yellow.
Function
Skin benefits
- Source of indigo-class pigments and flavonoids
- Mild antioxidant tone
- Traditional soothing botanical for skin
Known concerns
- Strong natural pigment can stain skin and fabrics
- Plant-allergy potential in sensitized users
- Limited cosmetic-specific safety data
References
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.