L-Carnitine enhances performance by increasing the body's reliance on fat for energy; this reduces depletion of muscle glycogen. By reducing muscle tissue lactic acid build-up, performance athletes using L-Carnitine can extend duration of muscular exertion before fatigue. Added Vitamin B5 makes L-Carnitine work better by helping it shuttle fatty acids to the cell to be burned for energy production. Add this to your routine today!