Bio-Enhanced Turmeric Extract. Support for Healthy Joints. Enhanced Bioavailability. Curcumin, the active polyphenolic extract of Turmeric, is one of the most scientifically investigated plant compounds. However, Curcumin’s health-supporting properties depend on its bioavailability. NOW Curcumin Phytosome is a unique form of Curcumin complexed with Phosphatidylcholine that clinically demonstrates enhanced absorption and bioavailability as compared with standard Curcumin extracts. Clinical studies also show that Curcumin Phytosome is a powerful free radical scavenger, can help to support a balanced immune system response to normal metabolic stress, and can promote healthy joint mobility and flexibility.