First of all, muscletech is a big brand from America. Committed to the research of health care industry beneficial to human body. It hasn't changed for so many years. For the weight loss industry, the introduction of L-carnitine is a major discovery that shocked the whole world. Its researchers couldn't believe their own judgment when they first discovered L-carnitine. After repeated experiments and comparative extraction, they discovered the existence of L-carnitine. Therefore, the discovery of muscletech L-carnitine is good news for people who lose weight. Immediately afterwards, muscletech incorporated this scientific research achievement into its own weight-loss health care products, which immediately attracted worldwide imitation, but its patent right always belonged to muscletech. Above, we introduced muscletech L-carnitine through the development history of muscletech, hoping to popularize the true origin of L-carnitine for everyone. Therefore, when you buy it in the future, you must look for muscletech L-carnitine.