Now L-Carnitine – Purest Form, Clinically Test For Fitness Support! Important Nutrient For Enhancing Mental Performance And Function! Important Nutrient For Enhancing Mental Performance And Function!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. Note: Manufacturers continually change product specifications. While we try our best to keep product descriptions up to date, they do not necessarily reflect the latest information available from the manufacturer. We are not responsible for incorrect or outdated product descriptions and/or images.