Botanical colorant
PERSICARIA TINCTORIA LEAF POWDER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Powdered leaf of the Japanese indigo plant, used in cosmetics and natural hair dyes as a blue-green colorant. Provides antioxidant plant compounds, with a low but real chance of skin sensitisation.
Skin benefits
- Natural source of indigo pigment used as a plant-based colorant
- Contains polyphenols with antioxidant activity
- Studied for anti-inflammatory and UV-protective effects on skin
- Plant-based alternative to synthetic dyes
Known concerns
- Weak skin sensitisation potential cannot be fully excluded (per SCCS opinion on related Indigofera tinctoria)
- Batch-to-batch composition varies for botanical powders
- Raw leaf powder may contain residual contaminants if not purified
- Limited dedicated safety review for this specific species in cosmetics
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related botanical colorants
Same plant / compound family
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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.