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D-phenylalanine is a non-protein amino acid related to the essential amino acid l-phenylalanine. d- and l-phenylalanine are structural mirror images of each other. a small amount of d-phenylalanine may be converted to l-phenylalanine in the body. d-phenylalanine is reported to inhibit an enzyme that degrades enkephalins, which are naturally occurring substances in the body that belong to the class of compounds known as endorphins.
D-phenylalanine is reported to inhibit an enzyme that degrades enkephalins
Directions Take 1 to 2 capsules daily, between meals. Store in a cool dry place.
Safety WarningPhenylalanine supplements should not be taken by individuals with phenylketonuria (PKU), children, pregnant or lactating women, people with high blood pressure, and anyone taking anti-psychotic medications or MAO inhibitors.
Modified cellulose (vegetarian capsule), cellulose, magnesium stearate (vegetable source).
Contains nothing other than listed ingredients