How we scored it
Sulfated polysaccharide extracted from brown algae; algal extraction product with natural sulfate groups = 1.0.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.
Where it comes from
Extracted from brown algae such as kelp or wakame using hot water or dilute acid extraction. No synthetic route is used for this algal polysaccharide.
In plain English
An antioxidant polysaccharide extracted from brown seaweed. Used in skincare for its skin-conditioning properties, sourced directly from marine algae.
CosIng definition: Fucoidan is a sulfated polysaccharide extracted from brown algae.
References
- 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
- 2FUCOIDAN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3FUCOIDAN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=FUCOIDAN