How we scored it
C17H30O8, 362.4 Da: ascorbate core (glucose) + glyceryl (glycerin) + octyl (caprylyl alcohol, oleochemical). All natural, 362.4/362.4 = 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
Dominant route: glucose-derived ascorbic acid is etherified with a glycerin unit and with octanol from coconut or palm-kernel oil. Supplier note: Ziegler or oxo octanol exists and the glyceryl may be introduced through glycidol or epichlorohydrin, so confirm the grade.
In plain English
A stabilised derivative of vitamin C used as an antioxidant and humectant in skin products. It is made by attaching a glycerin unit and a short fatty (octyl) chain to ascorbic acid, which is itself produced from glucose.
Structure
(2R)-2-[(1S)-1,2-dihydroxyethyl]-3-(2,3-dihydroxypropoxy)-4-octoxy-2H-furan-5-one
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.
- 2Caprylyl 3-Glyceryl Ascorbate. PubChem CID 54588053. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3CAPRYLYL 3-GLYCERYL ASCORBATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4CAPRYLYL 3-GLYCERYL ASCORBATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CAPRYLYL%203-GLYCERYL%20ASCORBATE