Database/Film Forming/Polysilicone-6
100% petroleum · ISO 16128

Is Polysilicone-6 natural?

No. Silicone-acrylate graft copolymer; silicones are 0 by this site's convention and acrylates are petrochemical, so the whole molecule is 0.

INCI namePolysilicone-6
CAS146632-09-9
FunctionFilm Forming · Hair Conditioning
FeedstockSynthesised from a mercaptopropyl-functional silicone reacted with isobutyl…

How we scored it

Mercaptopropyl dimethylsiloxane reacted with isobutyl acrylate (thiol-ene addition); both silicone and acrylate fragments are 0 by rule/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

Synthesised from a mercaptopropyl-functional silicone reacted with isobutyl methacrylate via thiol-ene coupling. Both the siloxane backbone and the acrylate graft are non-natural (mineral/petrochemical synthetic) under site rules.

In plain English

A silicone-acrylate film-forming polymer used in haircare to add shine, hold and a protective coating. It is entirely synthetic in origin.

CosIng definition: Silicones and siloxanes, dimethyl, methyl 3-mercaptopropyl, reaction products with 2-methylpropyl 2-propenoate

Natural alternatives with the same function

Abies Balsamea Resin 100% natural origin

A sticky resin tapped from balsam fir trees, used for its piney scent and to form a thin…

 Acacia Senegal Gum 100% natural origin

The dried gum exuded from the acacia tree, collected by tapping the bark. Used to form a film…

 Albumen 100% natural origin

Egg white. Used in cosmetics to form a film on skin or hair and to help condition them.

 Amorphophallus Konjac Root Extract 100% natural origin

A root extract from the konjac plant that helps form a light film on skin and hair and…

 Astragalus Gummifer Gum 100% natural origin

A natural plant gum, known as tragacanth, harvested from a Middle Eastern shrub. Used as a thickener and…

 Aureobasidium Pullulans Ferment Extract 100% natural origin

An extract of the liquid left after the yeast-like fungus Aureobasidium pullulans is grown on sugars in a…

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. 2POLYSILICONE-6. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3POLYSILICONE-6. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYSILICONE-6