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...
New Roots Herbal L-Lysine 500mg ʟ‑Lysine is one of numerous amino acids that the body needs for growth and tissue repair.* It is classified as one of the nine “essential” amino acids because our bodies do not produce it. Like all amino acids,...