Amino acid L-Lysine hydrochloride 1000 mg. Basic amino acid necessary for protein synthesis. It helps to boost the immune system.  Dietary supplements should not be used as substitutes for a balanced diet. They should be kept away from small children. The specific recommended daily dose should not be exceeded. Dietary supplements are not intended to prevent, treat or cure human disease. Consult your doctor if you are pregnant, breastfeeding, on medication or have health problems.