DL Phenylalanine 500mg 100 VegiCaps

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DL Phenylalanine 500mg 100 VegiCaps

Retail $18.75Regular $14.36$14.07

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L-phenylalanine is an essential amino acid that can be converted to L-tyrosine in the liver. L-tyrosine can be converted in the brain and in the adrenal glands to dopamine, norepinephrine, and epinephrine (adrenaline) hormones that are depleted by stress, overwork and certain drugs. By replenishing norepinephrine in the brain, mental energy levels are enhanced and a feeling of contentment often occurs. The conversion step from L-tyrosine to norepinephrine may be enhanced if the co-factors (vitamins B6 and C) are included.

Cells in the adrenal medulla synthesize and secrete norepinephrine and epinephrine. Since both norepinephrine and epinephrine can cause smooth muscle (arterial) contraction, care with blood pressure should be taken when supplementing with L-phenylalanine or tyrosine.

Other Ingredients

Magnesium stearate, gelatin, and water

Suggested Use

Suggested dose is 500 to 1000 mg in the morning or afternoon. More may be necessary for depression or pain. * These products are best utilized when taken on an empty stomach mixed with juice or water. Adequate cofactors (vitamins B6 and C) should also be taken if not included with the product.

Does Not Contain

This product contains no sugar, yeast, wheat, gluten, corn, or dairy. Contains no artificial color, sweeteners, flavors or preservatives.


Cancer patients should avoid taking L-phenylalanine and L-tyrosine. Certain cancers, such as melanoma, depend on these amino acids to fuel their growth. Supplemental use of L-phenylalanine and L-tyrosine may raise or normalize blood pressure. Insomnia may occur from over stimulation if taken too close to bedtime. Individuals with the rare metabolic disorder Phenylketonuria should avoid phenylalanine. These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

Supplement Facts

Amount Per Serving%DV
*Daily Value (DV) not established.

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