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Source Naturals, L-Phenylalanine Powder - 3.53 oz (100 g)

  • $29.99
  • $24.99
  • Amino Acid Supplement

L-Phenylalanine, an essential amino acid, is a precursor for the amino acid tyrosine, as well as for a whole series of neurotransmitters and hormones. Phenylalanine is first converted to tyrosine, which becomes L-dopa, which then converts to norepinephrine,

a key neurotransmitter and adrenal hormone. L-Phenylalanine is also a direct precursor to PEA (phenylethylamine), another important neurotransmitter.

An essential amino acid

  • First converted to tyrosine, which beomes L-dopa, which coverts to norepinephrine
  • Vegetarian and hypoallergenic friendly

Suggested Use 1/4 teaspoon daily between meals, preferably in the morning

Supplement Facts
Serving Size: 1/4 Teaspoon (approx 1 g)
Servings Per Container: 100
  Amount Per Serving %DV
L-Phenylalanine 1 g
†Daily Value not established
Other Ingredients

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.


Contains phenylalanine. Not to be used by phenylketonurics, women who are pregnant, may become pregnant, breast feeding or with antidepressant drugs, such as MAOI's or SSRI's. If you have chronic high blood pressure, consult your health care professional before using this product.

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

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