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NOW - L-Phenylalanine

NOW - L-Phenylalanine

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Info: 120 Veg. Capsules

L-Phenylalanine is an essential amino acid, meaning that our body cannot synthesize this compound naturally and must obtain it from dietary sources such as fish, meat, eggs, cheese, and milk. However, some individuals may require supplementation of this amino acid due to insufficient dietary intake or increased physiological need. L-Phenylalanine is a precursor to the amino acid tyrosine, which plays an important role in the synthesis of proteins, as well as the production of neurotransmitters, such as L-dopa, epinephrine, and norepinephrine; therefore, L-Phenylalanine is a key factor in supporting mood and brain function. L-Phenylalanine may equally be beneficial to body builders and those undergoing extreme levels of stress.


Each capsule contains:
500 mg L-Phenylalanine

Non-medicinal ingredients: Veg. Capsule (hypromellose, water).

Vegetarian product. Free of: sugar, salt, starch, yeast, wheat, gluten, corn, soy, egg, milk or preservatives.

Suggested Usage:

Adults: Take 1 capsule, 3 times daily between meals.


Do not use if you are pregnant or breastfeeding, or if you have hypertension, or if you are taking a Monoamine Oxidase Inhibitor (MAOI) drug. Also do not use this product if you have depression, Parkinson's disease, Phenylketonuria, or Schizophrenia, unless under the supervision of a healthcare practitioner.

Health Canada Natural Product Number: 80003409.

Product Notes:

Supporting Science:

Shils ME, Olson JA, Shike M, Ross AC. Modern Nutrition in Health and Disease,
Ninth Edition. Williams and Wilkins, 1999: pp. 1007-25.

Stryer, L. Biochemistry, Fourth Edition. W.H. Freeman and Company, New York,
1998. pp. 21, 647-50.
UPC Code: 733739801326