May Benefit The Joints By Helping Neutralize Free Radicals. with Curcumin C3 Complex and BioPerine. Science-Based Nutrition. Gluten & Soy Free. Non-GMO. Doctor's Best Curcumin with CurcuminC3 Complex and BioPerine contains a potent standardized extract of Curcuma longa root, known as turmeric. Turmeric has centuries of tradition in Ayurvedic healing. The active ingredients in Curcuma longa are curcuminoids, compounds that demonstrate potent antioxidant properties in scientific studies. Curcuminoids may benefit the joints, brain, heart and circulatory system by helping to neutralize free radicals. BioPerine is an extract of Black Pepper fruit that contains 95-98% peperine as a natural bio-enhancer to promote absorption. Helps protect cells and tissue by fighting free radicals. Helps prevent connective tissue breakdown by inhibiting destructive enzymes. BioPerine helps promote absorption of nutrients in the GI tract