Source Naturals DL-Phenylalanine 750mg, 60 Tablets

A 50/50 blend of the D- and L-forms of the amino acid phenylalanine
Phenylalanine is one of the few amino acids that can be utilized in its D- form
Researchers believe DPA inhibits the action of an enzyme that breaks down endorphins and enkephalins
DPA may extend the life of endorphins and enkephalins, and their positive influence on comfort levels
LPA is the precursor to two neurotransmitters that help support an alert state
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