Bigmuscles Nutrition Alcar Product Info Bigmuscles Alcar (acetyl l-carnitine is a modified amino acid that supports cellular energy production by assisting in the transport of fat into the mitochondria where it is converted into ATP chemical energy for the cell). Acetyl l-carnitine in a highly bioavailable form metabolism and supports brain function. Acetyl l-carnitine assists the transport of fat into the mitochondria. Where it is oxidized and converted to ATP. Directions To Use As a dietary supplement. Take 2 capsules on empty stomach in the morning. Ingredients Acetyl L-Carnitine