Database/Binding/Sodium Carboxymethyl Beta-Glucan
Mostly natural · ISO 16128

Is Sodium Carboxymethyl Beta-Glucan natural?

Mostly. Beta-glucan backbone is a natural polysaccharide; the carboxymethyl ether groups derive from petrochemical chloroacetic acid; sodium is mineral.

INCI nameSodium Carboxymethyl Beta-Glucan
CAS9050-93-5
FunctionBinding · Cleansing
FeedstockMade by carboxymethylating natural beta-glucan (from yeast, oat,…

How we scored it

Glucose repeat unit C6H10O5 162 Da (natural) at assumed DS 0.4 carboxymethyl substitution: +9 Da Na (mineral, natural), +23 Da CH2COO from chloroacetic acid (petrochemical); 171/194 = 0.88
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

Made by carboxymethylating natural beta-glucan (from yeast, oat, or barley) with chloroacetic acid, then neutralizing with sodium hydroxide, at an assumed typical degree of substitution of 0.4.

In plain English

A modified form of beta-glucan, a natural sugar polymer from sources like yeast or oats, chemically altered to help thicken formulas and hold moisture on skin.

CosIng definition: Sodium Carboxymethyl Beta-Glucan is the sodium salt of a carboxymethyl ether of Beta-Glucan

Natural alternatives with the same function

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. 2SODIUM CARBOXYMETHYL BETA-GLUCAN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3SODIUM CARBOXYMETHYL BETA-GLUCAN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SODIUM%20CARBOXYMETHYL%20BETA-GLUCAN