L-carnitine is an endogenous compound produced in the liver and kidneys from the essential amino acids L-lysine and L-methionine. Skeletal muscle serves as the body's storage site. The product provides an important nutritional contribution to the daily diet and is ideal as a supplement to a vegetarian or vegan diet. Like all Pure Encapsulations products, L-carnitine is also manufactured according to strict international standards. To ensure long-term, consistently high product quality, the entire process, from production to storage, is constantly monitored. Internal and external quality controls are performed at every stage.