Database/Film Forming/Polyester-5
100% petroleum · ISO 16128

Is Polyester-5 natural?

No. Copolymer built entirely from ethylene-oxide and benzene-derived petrochemical monomers.

INCI namePolyester-5
FunctionFilm Forming · Viscosity Controlling
FeedstockDiethylene glycol comes from ethylene oxide; 1,4-cyclohexanedimethanol and…

How we scored it

All four monomers (diethylene glycol ex ethylene oxide; cyclohexanedimethanol, isophthalic and sulfoisophthalic acid, all benzene-derived) are 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

Diethylene glycol comes from ethylene oxide; 1,4-cyclohexanedimethanol and the isophthalic/sulfoisophthalic acids come from petrochemical xylenes/benzene. No natural-origin route exists for this film-former.

In plain English

A synthetic film-forming polymer used in hairsprays and nail products, built from four different petroleum-derived chemical building blocks. Chemically related to polyester fibres.

CosIng definition: Polyester-5 is a copolymer of diethylene glycol, 1,4-cyclohexanedimethanol and the simple esters of isophthalic acid and sulfoisophthalic acid

Natural alternatives with the same function

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. 2POLYESTER-5. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3POLYESTER-5. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYESTER-5