Life Extension L-Lysine, 620 mg, Essential Amino Acid for Healthy nitrogen Balance, Calcium Metabolism, Stress Response & More, Gluten-Free, Non-GMO, Vegetarian, 100 Capsules

L-lysine is an essential amino acid, which your body cannot make on its own. L-lysine promotes healthy nitrogen balance and calcium metabolism. In addition, it helps promote a healthy stress response ...