Database/Solvent/PPG-3 Methyl Ether
100% petroleum · ISO 16128

Is PPG-3 Methyl Ether natural?

No. Propylene oxide and its polypropylene glycol chains are explicitly petrochemical; the methanol cap is also petrochemical.

INCI namePPG-3 Methyl Ether
CAS25498-49-1
FunctionSolvent
FeedstockMade by reacting petrochemical methanol with propylene oxide…

How we scored it

Methanol + 3 mol propylene oxide (petrochemical) -> PPG-3 methyl ether; 0/206 approx = 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

Made by reacting petrochemical methanol with propylene oxide to build a short polypropylene glycol chain. No natural-origin production route exists.

In plain English

A synthetic solvent made by reacting petrochemical propylene oxide with methanol. Used to help dissolve other ingredients and control the flow and feel of liquid cosmetic formulas.

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