• a potent, well-absorbed antioxidant formula*
• provides cardiovascular, gastrointestinal, and respiratory support*

Product Information

Quercenase is a combination of water-soluble quercetin* and bromelain. Bromelain is a compound of proteolytic enzymes derived from the pineapple plant. Bromelain has protein-digesting and immune-enhancing properties.* Bromelain also contains constituents that help maintain the body's normal inflammatory response, and may help the absorption of soluble quercetin.*

Quercetin appears to have many beneficial effects on human health, including cardiovascular protection, as well as protection of the gastrointestinal tract.* A number of quercetin's effects appear to be due to its antioxidant activity.* Quercetin scavenges free radicals and inhibits oxidation of LDL cholesterol.* By itself, and paired with vitamin C, quercetin can reduce the incidence of oxidative damage to skin and nerves caused by glutathione depletion.* Quercetin also stabilizes mast cells that store and release histamine.*

The flavonoid quercetin is ubiquitous in the plant community. It consists of a three-ringed structure with an oxygen molecule at the top of the middle flavonoid ring. It contains five hydroxyl (OH) groups, which gives it potent antioxidant activity.* However, regular quercetin is not water soluble and is poorly absorbed from an oral dose. Thorne Research's water-soluble quercetin is more bioavailable than regular quercetin.

Ingredients