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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 physiological processes. By obstructing the action of this enzyme, DPA may extend the life of endorphins and enkephalins and their positive influence on comfort levels. L-Phenylalanine is the precursor to two neurotransmitters that help support an alert state.

Supplement Facts for 750 mg Tablet Serving Size: 1 Tablet

Amount %DV Calcium 54 mg 5% DL-Phenylalanine 750 mg

Other Ingredients: dibasic calcium phosphate, stearic acid, sorbitol, magnesium stearate, silica, and modified cellulose gum.

Warning: Contains phenylalanine. Not to be used by phenylketonurics, women who are pregnant, may become pregnant, or breastfeeding, or with antidepressant drugs containing MAO or SSR inhibitors. If you have chronic high blood pressure, take after meals and/or consult your health care professional.Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Suggested Use: 1 to 3 tablets daily.

Brand: Source Naturals