Nature Made L-Lysine delivers 1,000 mg of this essential amino acid per single-tablet serving. Essential amino acids are those that are not made by the body and must be obtained through diet or supplementation. L-lysine plays a key role in the makeup of proteins in the body. May also support immune and membrane health.

• Supports protein synthesis

• Essential amino acid 

• 1,000 mg per serving

• Gluten Free