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Best D-Phenylalanine

Doctor's BestUpdated April 2026

This product has been discontinued. Label data shown is from the last available version.

OTHER INGREDIENTS
  • Magnesium stearate

Product Information

Form
Capsule
Servings Per Container
60
UPC
7 53950 00110 7
Product Type
Amino acid/Protein
DSLD Entry Date
2016-05-22

Target Groups

VeganVegetarianAdult (18 - 50 Years)Gluten Free

All Ingredients

IngredientAmount% DV
D-Phenylalanine500 mg

† Daily Value not established.

Label Statements

Formulation re: Vegetarian/Vegan

Vegan

General Statements: All Other Content

D-phenylalanine is a non-protein amino acid related to the essential amino acid L-phenylalanine. D- and L-phenylalanine are structural mirror images of each other. A small amount of D-phenylalanine may be converted to L-phenylalanine in the body.* D-phenylalanine is reported to inhibit an enzyme that degrades enkephalins, which are naturally occurring substances in the body that belong to the class of compounds known as "endorphins."*

FDA Disclaimer Statement

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended diagnose, treat, cure, or prevent any disease.

Brand IP Statement(s) re: (c), (TM), (SM)

Science-Based Nutrition

FDA Statement of Identity

Dietary Supplement

General Statements: All Other Content

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Suggested/Recommended/Usage/Directions

Suggested Adult Use: Take 1 or 2 capsules daily, between meals, or as recommended by a nutritionally-informed physician.

Precautions re: Pregnant or Nursing or Prescription Medications

Caution: Phenylalanine supplements should not be taken by individuals with phenylketonuria (PKU), children, pregnant or lactating women, people with high blood pressure, and anyone taking anti-psychotic medications or MAO inhibitors.

Precautions re: Children

Caution: Phenylalanine supplements should not be taken by individuals with phenylketonuria (PKU), children, pregnant or lactating women, people with high blood pressure, and anyone taking anti-psychotic medications or MAO inhibitors.

Formulation re: Does NOT Contain

Non-GMO and Gluten Free

Storage

Store in a cool dry place.

General: Product/Version Code

YDRB110-1

Seals/Symbols

Vegan

General Statements: All Other Content

500 mg

Supplement Facts Panel

Supplement Facts
Serving Size 1 Capsule(s)
Servings Per Container 60
Amount Per Serving% Daily Value*
D-Phenylalanine
500 mg

* Percent Daily Values are based on a 2,000 calorie diet.

† Daily Value not established.

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