Database/Antioxidant/Isoquercitrin
100% natural origin · ISO 16128

Is Isoquercitrin natural?

Yes. Aglycone quercetin and the glucose unit both originate from plant material; extraction or enzymatic deglycosylation of rutin adds no petrochemical mass.

INCI nameIsoquercitrin
CAS21637-25-2
FormulaC21H20O12 · 464.4 Da
FunctionAntioxidant
FeedstockExtracted from plants such as Sophora japonica, or…

How we scored it

Quercetin (plant flavonoid) + glucose, glycosidically linked; both building blocks plant-derived, no petrochemical fragment introduced.
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 plants such as Sophora japonica, or produced by enzymatically removing one sugar (rhamnose) from rutin, itself a plant flavonoid. Both routes are natural-origin; no commercial petrochemical synthesis is used.

In plain English

A plant flavonoid (quercetin bound to a sugar) used as an antioxidant in skincare. Extracted from plants or made by enzymatically converting a related plant flavonoid (rutin).

Structure

2D structure of Isoquercitrin

3-[(2S,3R,4R,5R)-5-[(1R)-1,2-dihydroxyethyl]-3,4-dihydroxyoxolan-2-yl]oxy-2-(3,4-dihydroxyphenyl)-5,7-dihydroxychromen-4-one

PubChem CID 5484006 ↗

References

  1. 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.
  2. 2Isoquercitrin. PubChem CID 5484006. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3ISOQUERCITRIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4ISOQUERCITRIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ISOQUERCITRIN