How we scored it
Where it comes from
Dominant route: esterification of oleochemical stearic acid with sodium methyl isethionate, made from propylene oxide and sodium bisulfite. Assumed from the usual methyl isethionate chemistry, as no grade-specific supplier statement was available.
In plain English
A foaming cleansing surfactant used in bars and washes. It joins stearic acid from vegetable oil to methyl isethionate, a small sulfonated unit made from propylene oxide.
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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.
- 2SODIUM STEAROYL METHYL ISETHIONATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3SODIUM STEAROYL METHYL ISETHIONATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SODIUM%20STEAROYL%20METHYL%20ISETHIONATE