Solgar L-Lysine is an essential amino acid that plays an important role in protein synthesis and is known for its potential benefits in promoting healthy immune function and supporting muscle repair. Lysine cannot be produced by the body and must be obtained from diet or supplementation. This formula provides lysine in vegetarian capsules, making it suitable for a wide range of dietary preferences. Solgar is committed to quality and uses only the highest standards in sourcing and manufacturing of their products.