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Skin Conditioning

SARCOTHALIA CIRCUMCINCTA

70

Safety score · 0–100

Fine

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

About

A red algae (Sarcothalia circumcincta) extract used for hydration and conditioning. Carrageenan-style polysaccharides; well-tolerated marine ingredient.

Sarcothalia circumcincta is a red alga (Rhodophyta) harvested principally for its sulphated galactan polysaccharides (carrageenan-type), used in cosmetics as a hydrating, film-forming, and thickening agent. The genus has a long history of use in food carrageenan production, supporting general comfort with its safety. There is no dedicated SCCS or CIR opinion on the cosmetic use of Sarcothalia, so evidence is low. Like other carrageenan-bearing algae, finished ingredient quality varies with extraction and depolymerisation.

Function

SKIN PROTECTING, SKIN CONDITIONING - HUMECTANT

Skin benefits

  • Red algae-derived hydrating polysaccharides
  • Source of carrageenan-style sulphated polysaccharides
  • Vegan, sustainable source

Known concerns

  • Quality and purity vary by harvest
  • Possible iodine or sulphate-allergen concerns for sensitive users
  • No dedicated SCCS or CIR opinion

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.