Eclipse Chromium Picolinate is the biologically active form of the trace mineral Chromium. It has shown significant effects on lean body mass via insulin metabolism.World Class Nutrition carries all the name brand supplements, but we invite you to compare Ecilpse products to all the major brands; EAS, Muscletech, Prolab, AST, Xenadrine, Stacker 2. They make high quality protein, creatine, vitamin, diet and glutamine supplements.