How we scored it
Where it comes from
Undecylenic acid is produced by pyrolytic cracking of ricinoleic acid from castor oil, then reacted with petrochemical aminoethylethanolamine and chloroacetic acid, and neutralized with sodium hydroxide. No formula was supplied; structure estimated from the amphoacetate family.
In plain English
A mild, foam-boosting cleansing ingredient made from a castor-oil-derived fatty acid combined with petrochemical building blocks and sodium; used in shampoos and washes.
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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 UNDECYLENOAMPHOACETATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3SODIUM UNDECYLENOAMPHOACETATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SODIUM%20UNDECYLENOAMPHOACETATE