Humectant
HYDROLYZED SARGASSUM THUNBERGII EXTRACT
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Hydrolysed brown seaweed (Sargassum thunbergii) — rich in fucoidan-style polysaccharides and phlorotannins that draw water into skin and provide antioxidant support. Long history of safe topical use.
Function
Skin benefits
- Sulphated polysaccharides for moisture retention
- Phlorotannin antioxidant activity
- Anti-inflammatory skin support
- Marine mineral content
Known concerns
- Possible iodine content from brown algae
- Sustainability of wild-harvested macroalgae
- No significant concerns at cosmetic concentrations
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related humectants
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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.