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.
A Bioflavonoid formula that works to provide allergy and inflammation support
Quercetin is commonly used as a blood vessel protectant
Quercetin is also effective for managing allergies
NFH Quercetin SAP is made with both quercetin and bromelain
Quercetin has also be studied for its effect on managing allergies. Quercetin has shown to inhibit mast-cell secretions and has the ability to downregulate histamine production via inhibition of the enzyme histidine decarboxylase (HDC) mRNA from human mast cells.