Lysine's precise role in the ... of lesions in patients with recurrent herpes labialis. At the screening visit, patients were randomized to receive L-lysine monohydrochloride or placebo.

the amino acid that multiplies the herpes virus. The typical dosage for L-lysine involves taking 2 to 3 500mg capsules daily.

Lysine's efficacy for herpes labialis may lie more in prevention than treatment. Studies do not support the use of lysine for decreasing the severity or duration of outbreaks. Most patients ...