Acetyl-L-Carnitine, or ALCAR, is a modified version of the amino acid L-carnitine that the body can use for energy production. It’s special because it can get into the brain more easily than L-carnitine. Once there, it plays a role in energy production within brain cells and helps with the production of acetylcholine, a key brain chemical for memoryMemory is how your brain stors information for recall, later. It's your own special filing system where it keeps information you've learned and experiences you've had. Sometimes you can recall this information easily, and sometimes you might find it hard... Continue to full entry and learning.