Curcumin is the most active constituent of turmeric. It has powerful antioxidant and anti-inflammatory properties. Curcumin C3 Complex® enjoys a special place among curcumin extracts. The name C3 Complex has reference to its three main chemical compounds – Curcumin, Demethoxycurcumin and Bisdemethoxycurcumin – collectively known as Curcuminoids. Curcumin C3 Complex has been used by major research institutions for clinical studies funded by the National Institutes of Health (NIH).