Sophora Japonica extract, quercetin 95%
Place of Origin:
Shaanxi, China (Mainland)
Store in cool and dry places. Keep away from strong light.
Pharmaceutical and food
Drum, Plastic Container
Quercetin is a flavonol found in many fruits, vegetables, leaves and grains. It can be used as an ingredient in supplements, beverages, or foods.
High Purity Quercetin 98% priceQuercetin has not been confirmed scientifically as a specific therapeutic for any condition nor approved by any regulatory agency. The European Food Safety Authority evaluated possible health claims associated with consumption of quercetin, finding that no cause-and-effect relationship has been established for any physiological effect.
Quercetin itself (aglycone quercetin), as opposed to quercetin glycosides, is not a normal dietary component. In a bioavailability study in rats, radiolabelled quercetin-4'-glucoside was converted to phenolic acids as it passed through the gastrointestinal tract, producing compounds not monitored in previous animal studies of aglycone quercetin. All but 4% was recovered within 72 hours (69% in urine), indicating low retention and high excretion, a characteristic of ingested polyphenols. Quercetin may also induce insulin secretion by activation of L-type calcium channels in the pancreatic -cells.