L-Carnosine is a newer supplement that's seeing a lot of use in various anti-aging regimens and workout formulas because of its unique functions within cells. NOW Foods is our best-selling carnosine supplement, most likely because of their reputation for potency and purity which is important when using a supplement that hasn't been on the market for very long. As an anti-aging supplement, carnosine can inhibit the formation of advanced glycated end products, or AGEs, which result when sugars and proteins irreversibly combine in the bloodstream. AGEs greatly contribute to the physical deterioration of the body and loss of function we associate with aging. Carnosine also helps cells to buffer the steep drop in pH that fatigues hardworking muscles and other types of cells. Finally, NOW Carnosine is an antioxidant and cell membrane stabilizer, improving cells' functional and structural integrity. Take at least 1000 mg per dose, or two of NOW's 500 mg capsules for best results