Database/Hair Conditioning/PPG-9 Butyl Ether
100% petroleum · ISO 16128

Is PPG-9 Butyl Ether natural?

No. Both the butyl starter alcohol and the propylene oxide chain are petrochemical; no natural fragment present.

INCI namePPG-9 Butyl Ether
CAS9003-13-8
FunctionHair Conditioning · Skin Conditioning
FeedstockManufactured by propoxylating butanol with about 9 moles…

How we scored it

Butanol (synthetic alcohol, n=0) + polypropylene oxide chain (petrochemical, n=0): 0/total = 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

Manufactured by propoxylating butanol with about 9 moles of propylene oxide; both butanol and propylene oxide are petrochemical, from propylene/butylene feedstocks. No natural-origin route exists.

In plain English

A synthetic conditioning ingredient made by reacting butanol with propylene oxide, used in hair and skin products. Both starting materials come from petroleum processing.

CosIng definition: Polyoxypropylene (9) butyl ether

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