L-Carnitine is a non-essential amino acid that helps to maintain overall good health by facilitating the transfer of fatty acid groups into the mitochondrial membrane for cellular energy production.* It naturally occurs in red meat and other animal source foods but we recommend supplementation to obtain optimal levels of this excellent amino acid. NOW® L-Carnitine is the purest form clinically tested and vegetarian (non-animal sourced). Carnipure™ offers purest L-Carnitine and is a trademark of Lonza Ltd Switzerland. Natural color variation may occur in this product.