GPLC is a propionyl ester of carnitine (PLC) that includes a glycine component. Compared with other forms of carnitine, PLC exhibits a special affinity for muscle tissues, including those of the heart and skeletal muscles. GPLC is a powerful antioxidant that scavenges free radicals â€” protecting against lipid peroxidation, assists in energy production â€” contributing to proper carbohydrate metabolism, improved muscle function and reduced lactic acid buildup during low-oxygen conditions such as exercise, and provides powerful support for peripheral arterial blood flow. AminoCarnitinesÂ® such as GlycoCarnÂ®, ArginoCarnÂ® and L-TauroÂ® are manufactured by Sigma-tau HealthScience under USA production patent # 6703042 and Worldwide production patent EP1202956. Other Ingredients Calcium phosphate, cellulose, stearic acid (vegetable source), silicon dioxide, magnesium stearate (vegetable source) and a food grade coating. No wheat, no gluten, no soybeans, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts. Store in a cool, dry place. DO NOT refrigerate. Glycine Propionyl-L-Carnitine HCl is protected by U.S. Patent # 6,703,042 B1. Suitable for vegetarians/vegans. Non-GMO Suggested Use Take 1 tablet per day on an empty stomach or as directed by your qualified healthcare professional.