How we scored it
6 glycerin units, 5 ether linkages, condensation water excluded. Formula C18H38O13 matches 6x glycerin minus 5x H2O (462.4 Da). All-natural = 1.0.
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 oligomerising oleochemical glycerin (6 units). No significant petrochemical route exists for this feedstock.
In plain English
A chain of six linked glycerin units, built from plant-derived glycerin. Used as a humectant to help skin and hair hold onto moisture.
Structure
(2S)-3-[(2S)-3-[(2S)-3-[(2R)-3-[(2S)-3-[(2S)-2,3-dihydroxypropoxy]-2-hydroxypropoxy]-2-hydroxypropoxy]-2-hydroxypropoxy]-2-hydroxypropoxy]propane-1,2-diol
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.
- 2Polyglycerin-6. PubChem CID 3084634. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3POLYGLYCERIN-6. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4POLYGLYCERIN-6. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYGLYCERIN-6