Database/Hair Conditioning/PEG-17 Dimethicone
100% petroleum · ISO 16128

Is PEG-17 Dimethicone natural?

No. This site's convention scores all silicones 0.0; the ethoxylate chain is petrochemical regardless.

INCI namePEG-17 Dimethicone
FunctionHair Conditioning · Skin Conditioning
FeedstockA PEG-modified silicone fluid; both the siloxane backbone…

How we scored it

Silicone = 0.0 by this site's convention; PEG-17 side chain is also petrochemical → 0.0.
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 PEG-modified silicone fluid; both the siloxane backbone and polyethylene-glycol chain are petrochemical/mineral-derived and scored 0.0 by site policy.

In plain English

A silicone conditioning ingredient with a small petroleum-derived chain attached so it blends more easily with water. Gives hair and skin products a smooth, silky feel.

CosIng definition: Silicones and siloxanes, dimethyl, hydropoly(oxy-1,2-ethanediyl methyl, trimethylsilyl terminated (17 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-17 DIMETHICONE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3PEG-17 DIMETHICONE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PEG-17%20DIMETHICONE