DMAE (dimethylaminoethanol) is an antioxidant and free radical deactivator which is found naturally in the human brain. It is thought to be the precursor for acetylcholine which conducts nerve impulses within the brain (a neurotransmitter). The theory is that by increasing the production of acetylcholine, DMAE can help improve memory and learning as well as perhaps reducing memory loss in older adults. Some individuals also report that DMAE causes a noticeable boost in their ability to concentrate.