Astringent
RHUS GLABRA BARK/BERRY/ROOT EXTRACT
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Smooth sumac extract — a tannin-rich astringent. Although Rhus glabra lacks the urushiol of poison sumac, cross-reactivity in Anacardiaceae-sensitive people and high tannin load make it a guarded yellow-orange pick.
Function
Skin benefits
- Tannins provide astringent toning effect
- Phenolic antioxidants from berries
- Traditional use in Native American skincare
Known concerns
- Rhus genus members have urushiol cross-reactivity risk
- Bark and root tannins can be sensitising
- Limited cosmetic-grade purity data
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related astringents
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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.