L-Phenylalanine 500 mg

Suggested Use

SUGGESTED USAGE: Take 1 capsule 1 to 3 times daily as needed; preferably between meals.

• 

  Now L-Phenylalanine 500 mg

  iHerb4.7(804)

  $12.24
• 

  Nutricost L-Phenylalanine Capsules

  Walmart - eSupplements, llc4.7(210)

  $10.36
• 

  L-Phenylalanine Brain & Skin Health Support Powder

  Walmart - BulkSupplements.com4.8(21)

  $25.97
• 

  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

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

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

  Directions(254) 532-1589

• 5 Star Nutrition Killeen

  4.8 (221)

  Vitamin & supplements store

  1033 S Fort Hood St #300, Killeen, TX 76541

  Directions(254) 432-8637

• Health Arena

  4.8 (133)

  Vitamin & supplements store

  2201 S W S Young Dr #104A, Killeen, TX 76543

  Directions(254) 628-9219

• The Vitamin Shoppe

  4.5 (143)

  Vitamin & supplements store

  201 E Central Texas Expy #790, Harker Heights, TX 76548

  Directions(254) 699-0230

• NutriStation Pro (Killeen)

  5.0 (14)

  Vitamin & supplements store

  1512 Lowes Blvd Ste 106, Killeen, TX 76542

  Directions(254) 415-7012

• Walgreens

  3.6 (142)

  Vitamin & supplements store

  527 E Business 190, Copperas Cove, TX 76522

  Directions(254) 547-1630

• H-E-B plus!

  4.7 (4422)

  Grocery store

  2990 E Business Hwy 190, Copperas Cove, TX 76522

  Directions(254) 547-6333

• GNC

  4.1 (46)

  Vitamin & supplements store

  1200 Lowes Blvd, Killeen, TX 76542

  Directions(254) 449-0042

• 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 …

  2026

• Structure–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 citations

• PhenQ 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 citations

• Disruption 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.