Natural Factors L-Lysine 500mg Natural Factors L-Lysine is one of nine essential amino acids that the body needs for repairing tissue, forming collagen, and producing hormones.* It also provides relief from the herpes simplex virus (HSV).* It works...
Prairie Naturals L-Lysine Stop cold sores! This essential amino acid is proven most effective against Herpes Simplex I, the common virus that causes cold sores and shingles. Supplementation with this free-form L-lysine greatly controls the virus,...