Acetyl-L-Carnitine is a natural compound found in the brain. Unfortunately, as we age levels begin to decline. Acetyl-L-Carnitine helps support energy production in the brain and helps support healthy levels of important brain chemicals such as neurotransmitters needed for memory, focus and learning. Acetyl-L-Carnitine has a distinct advantage over L-Carnitine when it comes to supporting healthy brain function. Acetyl-L-Carnitine is able to pass the very selective blood-brain barrier more efficiently than L-Carnitine, and therefore play more of a role in brain health.