Quick view NOW Foods L-Lysine 500mg (Essential amino acid) - 100 Tablets MSRP: $17.06 Now: $14.15 Was: Now Foods L-Lysine Tablets is an essential amino acid that must be obtained through the diet or through supplementation. Lysine is necessary for the production of all proteins in the body and is... MSRP: $17.06 Now: $14.15 Was: Add to Cart Quick view Add to Cart