Acetyl-L-Carnitine is a highly bioavailable form of L-Carnitine and is able to effectively cross the blood-brain barrier. Acetyl-L-Carnitine assists in the critical conversion of choline into acetylcholine. Acetylcholine is a key chemical messenger in the brain and promotes normal and healthy brain function including memory and concentration. It also helps transform fats into energy and supports normal muscle movement. Natural Factors amino acids are the highest quality pharmaceutical grade products available