How we scored it
Polysaccharide of linked glucose units, extracted from natural sources → 100% natural
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 oat or barley bran, yeast cell walls, or mushrooms, all natural sources of this glucose polymer.
In plain English
A soothing, moisture-binding polysaccharide extracted from oats, yeast or mushrooms. Used in skincare to calm and hydrate the skin.
CosIng definition: Beta-Glucan is a polysaccharide consisting of β(1-3), β(1-4), and β(1-6) linked glucose units
Structure
(2S,3R,4S,5S,6R)-2-[(2R,4R,5R,6S)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2R,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
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.
- 2Beta-Glucan. PubChem CID 439262. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3BETA-GLUCAN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4BETA-GLUCAN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=BETA-GLUCAN