Quercetin Phytosome offers advanced phytosome technology for optimal absorption.* A number of quercetin's beneficial effects appear to be due to its antioxidant activity.* The crucial advantage attributable to Thorne's Quercetin Phytosome is its advanced phytosome technology. 
Phytosome complexes are created by a patented process that binds a botanical extract to phospholipids – phospholipids are key components of cell membranes. In the case of Quercetin Phytosome, the quercetin is combined with sunflower-sourced phospholipids to create a phytosome complex that can easily cross the gut barrier.*
• Respiratory Support*
• Foundational