Life Extension Vitamin C & Bio-Quercetin Phytosome is designed to support immune health and promote anti-aging benefits. This supplement combines vitamin C with bio-quercetin phytosome, which is 50 times more bioavailable than traditional quercetin. Vitamin C helps fight oxidative stress, supports cardiovascular health, and promotes collagen formation and iron uptake. Quercetin enhances immune response and promotes a healthy inflammatory response. The product is gluten-free, non-GMO, and comes in a pack of 250 vegetarian tablets.