L-Lysine 270ct by Pure EncapsulationsWhat Is It? An essential amino acid, l lysine cannot be manufactured by the body and must be obtained from the diet. It is primarily noted for its importance in healthy protein synthesis, nitrogen balance and immune function.* Uses For l Lysine Immune Function: l Lysine provides nutritional support for the body's natural defenses, which includes maintaining healthy gum and lip tissue.* Bone Health: Recent evidence suggests the ability of l lysine to