Is Cetearyl Dimethicone Crosspolymer natural? NOI 0.00

Q: Is Cetearyl Dimethicone Crosspolymer natural?

Cetearyl Dimethicone Crosspolymer has a Natural Origin Index (NOI) of 0.00 (scale 0–1) per ISO 16128. Silicone crosspolymer backbone scored 0 by this site's convention, even though the cetearyl (fatty alcohol) side chain could be oleochemical. An NOI of 0.00 means 0% of its molecular mass is traceable to a natural, renewable source.

How we scored it

Cetearyl dimethicone crosslinked with vinyl cyclohexene oxide; site-convention 0.00 for silicones applies to the whole crosspolymer → 0.00.

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 crosslinking cetearyl-modified dimethicone with vinyl cyclohexene oxide, both largely petrochemical processes. This site's convention scores all silicone crosspolymers 0.0 regardless of the fatty cetearyl substituent.

In plain English

A silicone-based thickening ingredient that gives creams and lotions a smooth, gel-like texture. It's a fully synthetic, crosslinked silicone polymer.

CosIng definition: Cetearyl Dimethicone Crosspolymer is a copolymer of cetearyl dimethicone crosslinked with vinyl cyclohexene oxide

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