What is it?Precision Engineered Nutrition L-Arginine L-Ornithine L-Lysine tablets provide a tri-amino supplement that combines three essential amino acids: L-Arginine, L-Ornithine, and L-Lysine, into one easy-to-take formula. Synergistic Tri-Amino Formula for Protein Formulation Amino Acids Are the Building Blocks of Protein Suitable For Vegetarians and Vegans What Are the Benefits of This Supplement?Amino acids are the building blocks of protein. Lysine is an essential amino acid meaning it must be obtained from the diet. Arginine and Ornithine are made in the body. Protein makes up the structure of all cells and tissues in the body, including muscle tissue, tendons, internal organs, skin, hair, and nails. There are 20 amino acids, 12 of these can be made by the body and are referred to as non-essential, whilst the other 8 are known as essential and can only be supplied by the diet. You must be 18 years or older to purchase this product.