ATP Science Acetyl L-CarnitineAcetyl L Carnitine is a naturally occurring derivative of the amino acid L Carnitine that plays a critical role in cellular energy metabolism. In the body, it facilitates the transport of long chain fatty acids across the mitochondrial membrane, where they are converted into ATP. This fat shuttling function is central to how cells derive energy from lipid sources. Compared to plain L Carnitine, the acetylated form offers improved solubility and may