How we scored it
Isopropanol manufactured by petrochemical hydration of propylene; this site's convention lists it explicitly as a synthetic alcohol. 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.
How it’s made
Where it comes from
Manufactured by catalytic hydration of propylene, a petroleum-refining by-product. Used as a solvent and viscosity-control agent; minor fermentation-derived supply exists but is not mainstream.
In plain English
A fast-evaporating solvent used to dissolve other ingredients and adjust texture. It is manufactured from petroleum-derived propylene gas.
Natural alternatives with the same function
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Structure
propan-2-ol
References
- 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.
- 2Isopropyl Alcohol. PubChem CID 3776. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3ISOPROPYL ALCOHOL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4ISOPROPYL ALCOHOL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ISOPROPYL%20ALCOHOL