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  • D,L-Phenylalanine 500 mg

    Product UPC#

    Item# LEF1671

  • Retail Price: $18.75
  • Our Price: $13.25
  • Your Savings: 29% off
  • Quantity
D,L-Phenylalanine Capsules
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.

D,L-phenylalanine is a 50/50 mixture of its two stereoisomers.

  • Directions

    Directions: Take one capsule daily on an empty stomach in the morning, or as recommended by a healthcare practitioner. Best utilized if taken with the co-factors vitamins B6 and C.

  • Ingredients

    Ingredients: 1 vegetarian capsule supplies:
    D,L-phenylalanine 500 mg
    Other ingredients: vegetable cellulose (capsule), microcrystalline cellulose, vegetable stearate.

    Warning: May cause anxiety, high blood pressure, and headache. Do not use if you have phenylketonuria. Do not use phenylalanine or tyrosine if you have cancer or muscular dystrophy. Because phenylalanine can elevate blood pressure in hypertensives, consult your healthcare practitioner if you have hypertension. Insomnia may occur from overstimulation if taken too close to bedtime.