Acetyl-L-Carnitine has been suggested for Alzheimer's disease, senile depression, and added related memory defects. Acetyl-L-Carnitine ( ALC ) is a natural nutrient supplement recognized as a powerful cognition enhancer and life-extension agent. ALC is also considered to be an important anti-aging complex that has shown success in helping to combat depression in the elderly. Acetyl L-Carnitine (an acetylated ester of the amino acid L-carnitine) is used by the body to transports fats into the mitochondria where they can be metabolized to produce energy in the cells. Normal aging processes can severely impair this transport of L-carnitine from the liver to the blood stream and other areas of the body. Supplemental ALC is more digestible than unesterified L-carnitine, and is able to rapidly enter the circulatory system and improve transport efficiency. The use of supplemental Acetyl L-Carnitine as an agent to enhance cognition and reduce problems associated with mental impairment and senile dementia is based on an impressive body of studies documenting ALC's benefits. ALC has been shown to increase neuronal metabolism and cerebral blood flow, increasing the activity of neurotransmitters and dopamine. Researchers have also found that ALC enhances energy metabolism at the cellular level, inhibiting damage caused by hypoxia (oxygen starvation), aiding the heart, lungs, immune system and brain; improving symptoms associated with Alzheimer's disease, reducing lipofuscin buildup in the cells, possible prevention of diabetes related neuropathies, improving the sensitivity of receptors that trigger and mediate acetylcholine release, enhancing sleep, maintaining cell growth factor, and reducing brain cell death.