How we scored it
Natural olive secoiridoid glycoside; extracted intact from olive leaf, all 540.5 Da is plant-derived, so 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
Extracted from olive leaves, Olea europaea, where it is the dominant natural phenolic compound. There is no commercially significant synthetic route given the molecule's complexity.
In plain English
A powerful antioxidant compound naturally abundant in olive leaves. It's extracted directly from the leaves, not manufactured.
CosIng definition: Oleuropein is the organic compound that conforms to the formula:
Structure
methyl (4S,5E,6S)-4-[2-[2-(3,4-dihydroxyphenyl)ethoxy]-2-oxoethyl]-5-ethylidene-6-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4H-pyran-3-carboxylate
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.
- 2Oleuropein. PubChem CID 5281544. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3OLEUROPEIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4OLEUROPEIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=OLEUROPEIN