L-Lysine is an essential amino acid widely used in animal nutrition. This key component, not naturally synthesized by animals, is strategically incorporated into diets to maximize growth, health and feed efficiency. L-Lysine plays a crucial role in protein synthesis, promoting optimal muscle development and improving food conversion efficiency. Its inclusion in nutritional formulations stands out as an essential tool to optimize animal performance and guarantee a nutritional balance that contributes to the well-being and productivity of the target species.