Phenylalanine is an essential amino acid that is necessary for the normal functioning of the central nervous system. DL-phenylalanine (DLPA) is a 50/50 mixture of the synthetic D- form made in a laboratory and the L- natural form of this amino acid found in proteins. DL Phenylalanine possesses many health benefits such as pain and mood management. It also heightens overall awareness and regulates one's appetite. It can be used as a component in the synthesis of many different proteins that are naturally produced in the body. The pain relieving effects of D-phenylalanine are believed to occur from its enhancing levels of endorphins and enkephalins, the body's naturally occurring opiates.Phenylalanine is converted into Tyrosine in the body, which is another type of amino acid that creates proteins, hormones of the thyroid and various other chemicals in the brain. In addition, it helps create the neurotransmitters Norepinephrine, Epinephrine, and Dopamine that are needed to send signals from one nerve cell to the next.