L-Lysine is an essential amino acid that plays a critical role in many of the body’s functions, including muscle building, immune system strength, and collagen synthesis. As it is an essential amino acid, the body cannot produce L-Lysine itself, making it necessary to obtain it through diet or supplements. L-Lysine contributes to optimal protein synthesis and can help promote healthy growth and development of body tissues. It is especially popular among athletes and those looking to optimize their muscle recovery and immune system. L-Lysine supplements are ideal for those looking to supplement their daily intake of this essential amino acid to achieve optimal health and well-being.