Database/Antioxidant/Fucosterol
100% natural origin · ISO 16128

Is Fucosterol natural?

Yes. Fucosterol is isolated directly from brown algae biomass; the entire carbon skeleton is algal in origin.

INCI nameFucosterol
CAS17605-67-3
FunctionAntioxidant · Emollient
FeedstockExtracted from brown algae/seaweed (e.g. kelp, wakame) by…

How we scored it

Whole-molecule algal sterol obtained by direct extraction from brown seaweed; no synthetic fragments introduced.
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/seaweed (e.g. kelp, wakame) by solvent or supercritical extraction. No commercial synthetic route is used in cosmetics.

In plain English

A plant-sterol-type compound extracted from brown seaweed. Used in skin and hair products as an antioxidant and conditioning ingredient, drawing on seaweed's natural protective compounds.

Structure

2D structure of Fucosterol

PubChem CID 5281328 ↗

References

  1. 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.
  2. 2Fucosterol. PubChem CID 5281328. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3FUCOSTEROL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4FUCOSTEROL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=FUCOSTEROL