Database/Hair Conditioning/PEG-9 Dimethicone
100% petroleum · ISO 16128

Is PEG-9 Dimethicone natural?

No. A PEG-modified silicone polymer; scored 0.0 under this site's fixed convention for all silicones.

INCI namePEG-9 Dimethicone
FunctionHair Conditioning · Skin Conditioning
FeedstockA dimethylsiloxane polymer modified with polyethylene glycol (9…

How we scored it

Silicone (dimethicone) backbone with PEG-9 side chains; both the siloxane and PEG portions are non-natural, and silicones are 0.0 by this site's convention.
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

A dimethylsiloxane polymer modified with polyethylene glycol (9 mol EO) side chains, both produced synthetically from silicon/methyl chloride and ethylene oxide. Used to condition hair and skin and help blend water and oil phases.

In plain English

A silicone-based conditioning ingredient modified to mix better with water. It is entirely synthetic, made from silicone polymer and petrochemical ethylene oxide.

CosIng definition: Silicones and siloxanes, dimethyl, hydropoly(oxy-1,2-ethanediyl methyl, trimethylsilyl terminated (9 mol EO average molar ratio)

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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. 2PEG-9 DIMETHICONE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3PEG-9 DIMETHICONE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PEG-9%20DIMETHICONE