How we scored it
Citrus/plant flavanone; cosmetic-grade material is extracted or enzymatically derived from natural flavonoid precursors. Chemical total synthesis exists but is not the dominant commercial route = 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
Produced by extracting or enzymatically converting natural citrus flavonoid precursors, for example from Eriodictyon or citrus peel. A chemical total-synthesis route exists but is not the dominant commercial source.
In plain English
A plant-derived antioxidant flavonoid, typically sourced from citrus or yerba santa. Used in skincare to help protect skin cells from everyday oxidative stress.
Structure
(2S)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-2,3-dihydrochromen-4-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.
- 2Eriodictyol. PubChem CID 440735. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3ERIODICTYOL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4ERIODICTYOL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ERIODICTYOL