L-Lysine is an essential amino acid that cannot be made by your body – you must get it from nutritional sources. L-Lysine is used for the health and integrity of your skin, and is used for the production of collagen for and tissue maintenance.*

Supports Immune Function*
Healthy Skin and Lips*
May Protect Against and Treat Cold Sores by Blocking Arginine. ...
May Reduce Anxiety by Blocking Stress Response Receptors. ...
May Improve Calcium Absorption and Retention. ...
Can Promote Wound Healing by Helping Create Collagen.