Quercetin is a bioflavonoid that is found in onions, apples, black tea, and grapefruit. Quercetin has antioxidant activity and has long been used in herbal medicine. Quercetin is typically used as a blood vessel protectant. 

Quercetin has also been studied for its effect on managing allergies. Quercetin has shown to inhibit mast-cell secretions and has the ability to downregulate histamine production (Histamine Intolerance) via inhibition of the enzyme histidine decarboxylase (HDC) mRNA from human mast cells.

60 capsules

Quercetin SAP

Product Type

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