L-Lysine is an essential amino acid and eating a healthy and balanced diet should help achieve good levels of the amino acids we need. However, taking a supplement may be a convenient way to achieve and maintain our intake of L-Lysine. Solgar® L-Lysine 1000 mg Tablets come in a free-form and are Kosher and suitable for Vegans and Vegetarians. 1 tablet a day provides 1000 mg of L-Lysine.