Database/Hair Conditioning/Polysilicone-4
100% petroleum · ISO 16128

Is Polysilicone-4 natural?

No. Entirely a cyclic siloxane homopolymer; classified 0 under the site's blanket silicone rule.

INCI namePolysilicone-4
FunctionHair Conditioning
FeedstockProduced by polymerizing tetramethylcyclotetrasiloxane, a cyclic silicone monomer.…

How we scored it

Homopolymer of 2,4,6,8-tetramethylcyclotetrasiloxane; a pure cyclic silicone structure → 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

Produced by polymerizing tetramethylcyclotetrasiloxane, a cyclic silicone monomer. No natural-origin route exists for this material.

In plain English

A silicone polymer used in hair care to add shine and smoothness, made entirely from synthetic silicone building blocks.

CosIng definition: 2,4,6,8-Tetramethylcyclotetrasiloxane, homopolymer

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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. 2POLYSILICONE-4. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3POLYSILICONE-4. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYSILICONE-4