Nutricost, L-Lysine Powder, 1 KgProduct Description L lysine powder is a form of the essential amino acid l lysine, which plays a vital role in protein synthesis, tissue repair, and the maintenance of various bodily functions. Since l lysine is essential, it must be obtained through diet or supplementation, as the body cannot produce it on its own. Product Benefits Supports Immune Function. Promotes Muscle Repair. Helps Maintain Overall Health. Supporting Bone Health. Ingredients