Database/Film Forming/Glyceryl Undecyl Dimethicone
100% petroleum · ISO 16128

Is Glyceryl Undecyl Dimethicone natural?

No. The polydimethylsiloxane backbone is silicone (0.0 by this site's convention) and silicones stay 0.0 whatever their side chains, so the glycerin-derived graft earns no credit.

INCI nameGlyceryl Undecyl Dimethicone
FunctionFilm Forming
FeedstockMade by hydrosilylation of an unsaturated glyceryl ether…

How we scored it

Silicone: 0.0 by this site's convention whatever the side chains; the glyceryl-undecyl graft is not credited.
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 hydrosilylation of an unsaturated glyceryl ether onto a hydrosiloxane backbone from methylchlorosilanes. No commercially relevant natural route exists, and the silicone convention applies.

In plain English

A silicone with glycerin-based side chains that forms a smooth, flexible film on skin or hair and helps products spread. It is a synthetic silicone polymer carrying a glycerin-based side chain.

CosIng definition: Silicones and siloxanes, dimethyl, 11-(2,3-dihydroxypropoxy)undecyl methyl, trimethylsilyl terminated

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