Source Naturals, DL Phenylalanine, 375mg, 120 ct Bone Health Choline (from choline bitartrate) -

Choline (from choline bitartrate) - 83 mg

L-Cysteine

14 ml each) for no more than 10 days at a time

Vitamin B-6 (as pyridoxine HCl and pyridoxal-5' phosphate [Coenzymated]) - 100 mg

Source Naturals, DL Phenylalanine, 375mg, 120 ct Bone Health Choline (from choline bitartrate) -DL Phenylalanine, or DLPA, is a 50 50 mixture of the D and L forms of the amino acid phenylalanine (phenylalanine is one of the few aminos that can be utilized in its D form). Researchers believe that D phenylalanine (DPA) inhibits the action of an enzyme that breaks down endorphins and enkephalins. These are proteins that bind to opioid receptor sites in the brain, thereby influencing the perception of minor discomfort that is associated with normal