How we scored it
C21H20O9 isoflavone glycoside; treated as an isolated extraction product, not a fragment split.
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 and purified from kudzu root (Pueraria lobata), a major traditional-medicine crop grown at scale for this purpose. No significant synthetic route is used commercially.
In plain English
An antioxidant compound extracted and purified from kudzu root, a plant long used in traditional medicine. It comes from the root itself, not from synthetic chemistry.
Structure
7-hydroxy-3-(4-hydroxyphenyl)-8-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]chromen-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.
- 2Puerarin. PubChem CID 5281807. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3PUERARIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4PUERARIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PUERARIN