L-Lysine 500 mg by Supplement Labs provides a pure, plant-based source of the essential amino acid lysine, which plays a key role in protein metabolism and collagen formation. Each capsule delivers 500 mg of L-Lysine HCl to support normal immune function, tissue repair, and overall amino acid nutrition. As an essential amino acid, lysine must be obtained from the diet or supplements, making it ideal for individuals seeking additional support for skin, hair, and immune wellness.This convenient daily capsule is vegan-friendly and free from dairy, soy, gluten, and sugar. Suitable for adults following active, health-conscious lifestyles. Use only as directed.