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Source Naturals, L-Phenylalanine, 500 mg, 100 Tablets
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Source Naturals, L-Phenylalanine, 500 mg, 100 Tablets

By Source Naturals

20 Reviews
In Stock
  • Product Code: SNS-00161
  • UPC Code: 021078001614
  • Package Quantity: 100 Tablets
  • Dimensions: 2 x 2 x 3.5 in, 0.2 lbs (0.09 kg)
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Product Overview

  • Dietary Supplement
  • Free Form
  • An Essential Amino Acid

L-Phenylalanine, an essential amino acid, is a precursor of the amino acid tyrosine and a whole series of neurotransmitters and hormones. Phenylalanine is first converted to tyrosine, which becomes L-dopa, which converts to norepinephrine, a key neurotransmitter and an adrenal hormone. L-Phenylalanine is also a direct precursor of PEA (phenylethylamine), another important neurotransmitter.

Suggested Use

1 to 2 tablets daily.

Other Ingredients

Dibasic calcium phosphate, stearic acid, colloidal silicon dioxide, modified cellulose gum, and magnesium stearate.

Suitable for vegetarians and Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.


Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Contains phenylalanine. Not to be used by phenylketonurics, women who are pregnant, may become pregnant, or breastfeeding, or with antidepressant drugs such as MAOIs or SSRIs. If you have chronic high blood pressure, take after meals and/or consult your health care professional.

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Supplement Facts
Serving Size: 2 Tablets
Servings Per Container: 50
  Amount Per Serving %DV
Calcium 99 mg 10%
L-Phenylalanine 1 g
†Daily Value not established

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