L-Lysine is an essential amino acid that is necessary for the building blocks of all proteins. Lysine has been suggested to inhibit virus infections and is recommended for herpes simplex, canker and cold sores, proper nitrogen balance, enzymes, collagen and tissue repair, after surgery and sports injuries. Alacer Pro-Lysine Ascorbs Timed Release. Tablets are prepared under an exclusive process providing for release of all ingredients into the body over an extended period of time. Instructions: As dietary supplement (adults): Take two tablets in the morning and two at bedtime. Ingredients: Vitamin C, L-Proline Amino Acid, L-Lysine Amino Acid