Nature’s Sunshine’s Turmeric Curcumin VegCap contains 550 mg of turmeric root extract curcumin. Turmeric contains curcuminoids, the major active constituents of the root which gives turmeric its intense yellow pigment, antioxidant and anti-inflammatory properties. Due to the poor bioavailability of curcuminoids, Turmeric Curcumin also contains black pepper extract piper nigrumto enhance the bioavailability and absorption of curcumin.