L-Lysine-L-aspartate is a salt form combining the essential amino acid L-lysine and L-aspartic acid, widely used in the pharmaceutical and nutraceutical industries for its synergistic benefits. It is commonly incorporated into dietary supplements to support protein synthesis, muscle repair, immune function, and overall health, making it popular among athletes and those enhancing physical performance. In medical applications, it is particularly valued for treating liver disorders such as hepatic encephalopathy, where it facilitates ammonia detoxification via the urea cycle by supplying aspartate. It also addresses lysine deficiencies, supports recovery in patients with malnutrition or chronic illnesses, and enhances nutrient absorption in therapeutic and nutritional products.