How we scored it
N-acyl sphinganine with an alpha-hydroxy fatty acid: sphingoid base (yeast fermentation) plus vegetable fatty acid joined by one amide bond; coupling reagents leave no mass. 1.00.
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
A sphingoid base obtained by yeast fermentation is acylated with an alpha-hydroxy fatty acid from vegetable oil. Some suppliers build the base from synthetic intermediates, so confirm the grade.
In plain English
A skin-identical ceramide, one of the waxy lipids that make up the skin's outer barrier. In creams it helps hold moisture in and keeps the surface smooth. It is made from a yeast-derived sphingoid base joined to a fatty acid.
CosIng definition: Ceramide AG is the N-acylated sphingolipid consisting of Sphinganine having the D-erythro structure linked to an alpha-hydroxy saturated or unsaturated fatty acid.
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.
- 2CERAMIDE AG. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3CERAMIDE AG. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CERAMIDE%20AG