NOW Foods L-Carnosine 500 mg provides a pure dose of this naturally occurring dipeptide composed of beta-alanine and histidine — one of the most potent natural anti-glycation and anti-aging compounds identified in nutritional science. Carnosine inhibits the glycation process (the damaging cross-linking of proteins by sugars that accelerates cellular aging and is associated with diabetic complications, cataracts, and neurodegeneration). It is also a powerful antioxidant and metal chelator, protecting cells from oxidative and heavy metal damage. Research supports carnosine for brain health, vision protection (especially in cataracts), athletic buffering of lactic acid, and anti-aging cellular protection. NOW Foods delivers 500 mg per capsule — a full therapeutic dose — in a vegetarian capsule manufactured in their GMP-certified facility.