Sona L-Lysine 1000mg is an essential amino acid that serves as a building block for all proteins, which the body cannot produce on its own. It's particularly beneficial for individuals who suffer from cold sores and mouth ulcers, as it helps inhibit viral replication and shorten the duration of outbreaks. L-Lysine is also necessary for growth and development, collagen formation, and tissue repair, including muscle protein repair. This product comes in a convenient 90-tablet pack, with each tablet taken once a day. It's free from artificial flavors and preservatives.