Best Curcumin C3 Complex with Bioperine tablets and Best Curcumin w/Bioperine capsules contain a potent standardized extract of Curcuma longa root, commonly known as turmeric. Turmeric is the yellow spice that gives flavor to curried dishes. The herb has been employed in the Ayurvedic healing tradition for centuries as a folk remedy. The active ingredients in Curcuma longa are a group of plant substances called curcuminoids, a class of compounds that have demonstrated potent antioxidant properties in scientific studies. Curcuminoids may benefit the joints, brain, heart and the circulatory system by helping to neutralize free-radicals. Curcuminoids are responsible for turmeric’s distinctive yellow color. Although the term “curcumin” is used as a name for curcuminoids, “pure” curcumin is just one of the naturally occurring curcuminoids.