L-Phenylalanine pure powder 2.2LB (1000g) healthy mental energy mood weight
The body changes phenylalanine into tyrosine, another amino acid that is needed to make proteins and brain chemicals, including L -dopa, epinephrine, norepinephrine, and thyroid hormones. Because norepinephrine affects mood, different forms of phenylalanine have been proposed to treat depression.