what is l lysine vitamin used for
Lysine is an amino acid (building block of protein). People use it to make medicine. Lysine is used for preventing and treating cold sores (caused by the virus called herpes simplex labialis). It is taken by mouth or applied directly to the skin for this use. Lysine is also taken by mouth to improve athletic performance.
Between 500mg and 1,500 mg L-lysine daily are recommended for the prophylaxis of herpes simplex, ideally in combination with Zinc and Vitamin C. The dose for treatment of an active herpes-simplex infection the daily dose should be 3,000 mg per day.