How we scored it
Soybean oil triglyceride, C=C bonds epoxidised via peracid/peroxide; all carbons remain soybean-oil carbons -> 1.0 (oxidant reagent contributes no retained hydrocarbon mass, per ozonolysis 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
Made by epoxidising the double bonds of natural soybean oil with a peracid or hydrogen peroxide catalyst system. The fatty-acid carbon skeleton is entirely soybean-derived; no alternative route is used commercially.
In plain English
Soybean oil that has had oxygen added across its double bonds to form epoxide rings, improving stability. Used as an emollient and plasticiser; the fatty-acid backbone still comes entirely from soybean oil.
CosIng definition: Soybean oil, epoxidized
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.
- 2EPOXIDIZED SOYBEAN OIL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3EPOXIDIZED SOYBEAN OIL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=EPOXIDIZED%20SOYBEAN%20OIL