1. Lysine is an amino acid that is vital in the makeup of critical body proteins. It is needed for growth, tissue repair, and the production of antibodies, hormones, and enzymes.

2. Benefits: Lysine is used mostly in the treatment and prevention of outbreaks for the herpes simplex virus. It also promotes better concentration. Lysine can properly utilize fatty acids needed for energy production. It can also help with fertility.

3. Fun Fact: Lysine aids in the absorption of calcium, thus helping prevent and treat osteoporosis.