Net Contents
120 Veg Capsule(s)
Serving Size
1 Veg Capsule(s)
Servings Per Container
Not specified
Supplement Form
Capsule
Bar Code (UPC/SKU)
7 33739 00132 0
Product Version
CODE 0132C V5
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
Label states: Vegan, Vegetarian, Gluten-Free.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Supplement Facts
Serving Size: 1 Veg Capsule(s) · 1–3 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Phenylalanine | 500 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
SUGGESTED USAGE: Take 1 capsule 1 to 3 times daily as needed, preferably between meals.
Warnings & Precautions
Precautions re: All Other
Caution: For adults only.
Precautions re: Pregnant or Nursing or Prescription Medications
Consult physician if pregnant/nursing, taking medication, or have a medical condition (e.g. high blood pressure or phenylketonuria [PKU]).
Precautions re: Children
Keep out of reach of children.
Precautions re: Allergies
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Storage
Storage
Store in a cool, dry place after opening.
Formulation
Formulation re: Vegetarian/Vegan
Vegetarian/Vegan
Formulation re: Does NOT Contain
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.
FDA Statements
FDA Disclaimer Statement
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
FDA Statement of Identity
A Dietary Supplement
Other Label Statements
General Statements: All Other Content
L-Phenylalanine is an essential amino acid that can be readily converted into the amino acid tyrosine. Because tyrosine is necessary for the synthesis of proteins and the production of the neurotransmitters dopamine and norepinephrine, phenylalanine is an extremely important nutrient that must be obtained through the diet or supplementation.*
General Statements: All Other Content
CAPSULE SIZE
General: Product/Version Code
CODE 0132C V5
General Statements: All Other Content
NERVOUS SYSTEM SUPPORT*
General Statements: All Other Content
~ Supports Positive Mood* ~ Free-Form
Seals/Symbols
GMP QUALITY ASSURED
General Statements: All Other Content
Settling of powder may occur in the capsule, which is filled by weight without added fillers.
General Statements: All Other Content
Please Recycle.
Manufacturer & Distributor
Manufacturer
NOW Foods
395 S. Glen Ellyn Rd., Bloomingdale, IL, 60108, USA
Market Reference
Now L-Phenylalanine 500 mg
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Life Extension D,L-Phenylalanine Capsules
DPS Nutrition4.7(501)$14.26
Solaray L-Phenylalanine 500 mg 60 Capsules
Target4.8(32)$16.99
L-Phenylalanine 500mg (120 Vegetarian Capsules)
Walmart - BESTVITE INC4.6(5)$14.99
Swanson DL-Phenylalanine 500 mg 100 Caps
iHerb4.7(248)$12.59
Source Naturals L-Phenylalanine 500 mg Tablets
Herbs Direct4.7(122)$10.52
Where to Buy Locally
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Showing representative supplement & health retailers — search above for stores in your area.
GNC
4.0 (53)Vitamin & supplements store
Bldg, 4250 Clear Creek Rd, Fort Hood, TX 76544
5 Star Nutrition Killeen
4.8 (221)Vitamin & supplements store
1033 S Fort Hood St #300, Killeen, TX 76541
Health Arena
4.8 (133)Vitamin & supplements store
2201 S W S Young Dr #104A, Killeen, TX 76543
The Vitamin Shoppe
4.5 (143)Vitamin & supplements store
201 E Central Texas Expy #790, Harker Heights, TX 76548
NutriStation Pro (Killeen)
5.0 (14)Vitamin & supplements store
1512 Lowes Blvd Ste 106, Killeen, TX 76542
Walgreens
3.6 (142)Vitamin & supplements store
527 E Business 190, Copperas Cove, TX 76522
H-E-B plus!
4.7 (4422)Grocery store
2990 E Business Hwy 190, Copperas Cove, TX 76522
GNC
4.1 (46)Vitamin & supplements store
1200 Lowes Blvd, Killeen, TX 76542
Research & Studies
Calcium-sensing receptor regulation of gastrointestinal hormone secretion
J Anjom-Shoae, S Veedfald, AD Conigrave… - Endocrine …, 2026 - academic.oup.com
… to L-Trp and another aromatic AA, L-phenylalanine (L-Phe), and … trivalent cations (9), and it is now understood to be critical to Ca2+ … motility and plasma cholecystokinin in healthy men. J …
2026Structure–activity characteristics of phenylalanine analogs selectively transported by L-type amino acid transporter 1 (LAT1)
S Chen, C Jin, R Ohgaki, M Xu, H Okanishi, Y Kanai - Scientific reports, 2024 - nature.com
… We discovered that 2-iodo-l-phenylalanine (2-I-Phe), with an iodine substituent at position 2 … akin to the α-methyl group in α-methyl-l-phenylalanine (α-methyl-Phe), a known LAT1-…
202421 citationsPhenQ vs. Phenaprin (I Tried Both): Who Wins In 2026?
RK Range, RUSG Guide, RUHB Guide - blog.revgear.com
… solidified their presence in the health supplement industry. … The primary ingredient in Pheaprpin is L-phenylalanine (230 mg), … suppression range between 500 mg and 2 grams. At 230 …
Dopamine Brain Food by Natural Stacks: Boosting Cognitive Function Naturally
K Takeaways - neurolaunch.com
… Are There Side Effects or Risks to Taking Dopamine-Boosting Supplements Daily? For most healthy adults, L-Tyrosine and L-Phenylalanine at standard doses are well tolerated. The …
Synthesis of a series of amino acid derived ionic liquids and tertiary amines: green chemistry metrics including microbial toxicity and preliminary biodegradation data …
A Jordan, A Haiß, M Spulak, Y Karpichev… - Green …, 2016 - pubs.rsc.org
… evaluation and to supplement preliminary biodegradation studies… the synthesis of 6 ILs from L-phenylalanine were achieved. A C 2 … This headgroup can now be included in our ongoing …
201684 citationsDisruption of fibrillar assemblies of l-phenylalanine using polyphenol-passivated nanocarbon as a potential therapeutic strategy against phenylketonuria
S Chatterjee, K Kumar, P Kumar, AK Thakur… - Organic & Biomolecular …, 2025 - pubs.rsc.org
… assemblies of the aromatic amino acid L-phenylalanine at pathological concentrations. As a … The CNPGA-mediated inhibition and disruption of L-phenylalanine fibrils was examined …
2025
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2015-05-22. DSLD Label ID: 45706. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.
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