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This product is gluten-free, kosher, and vegetarian-friendly.

DL-Phenylalanine (DLPA) is 50% D and 50% L forms of the amino acid phenylalanine. D-phenylalanine is an enkephalinase inhibitor and may help to block the degradation of enkephalins which may support comfort. L-phenylalanine is a precursor to neurotransmitters in the brain.

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