21st Century, L-Lysine, 1,000 mg, 90 Tablets

Skin & Tissue SupportDietary SupplementGluten FreeNon-GMOGuaranteed QualityLaboratory TestedTrusted Quality for Over 30 YearsNo added Sugar, Yeast, Preservatives or Artificial FlavorsSuitable for Vegans L-Lysine is an essential amino acid which must be supplied from nutritional sources and is a building block of protein.