Curcumin is a powerful free radical neutralizer that is known to support balanced immune function, but is also known to have poor bioavailability.* NOW CurcuBrain features Longvida Optimized Curcumin, which in studies exhibits up to 65 times the bioavailability of free curcuminoids compared with generic curcumin.* Longvida is absorbed by the GI tract and delivered to the rest of the body as free curcumin, the active form in the body.* Longvida is shown to penetrate the blood-brain barrier for the support of healthy neuronal tissues.* LONGVIDA extract is patented under US 9192644 & EP 1993365 (other patents pending) and LONGVIDA is a registered trademark of Verdure Sciences Inc. Natural color variation may occur in this product.