Dr. Jess LOVES this product as its easily absorbable and aids with physical exhaustion. Helps with skeletal muscle fatigue and heaviness and research suggests it may increase acetylcholine levels, crosses the blood-brain barrier and improves mild memory problems associated with aging and decreaasing mitochondrial health. Acetyl L-Carnitine may increase acetylcholine levels, an important neurotransmitter. It crosses the blood-brain barrier and improves absentmindedness and mild memory problems associated with aging