The amino acid L-glutamine is found in high concentrations in muscle and performs a variety of functions. Among other things, it helps build protein in the body and is used as an energy source by certain cells, such as muscle cells or the intestinal lining. When the body's energy needs increase, more glutamine is required. Our bodies can produce L-glutamine from glutamic acid itself in skeletal muscle, but during periods of increased need, such as intense muscular stress, additional intake may be recommended. L-glutamine powder is easily mixed with water or fruit juice and offers the option of individual dosing. This product has proven itself in practice, particularly for amateur and professional athletes. Pure Encapsulations is among the most popular sports products on the Cologne List, offering maximum transparency regarding ingredients and the highest possible safety. Thus, the world's largest doping prevention platform for food supplements highlights the quality of the products tested.