L-Theanine

Suggested Use

Suggested use: As a dietary supplement; take 500 mg (about 1/5 tsp) once or twice daily; or as directed by a physician.

• 

  BulkSupplements L-Theanine Powder

  BulkSupplements.com4.4(60)

  $20.97
• 

  BulkSupplements L-Theanine Capsules

  BulkSupplements.com4.5(51)

  $18.97
• 

  Theanine Green Tea Extract

  The Bulk Cart

  $19.00
• 

  Bulk L-Theanine 500 Grams - Highest Quality Ingredients - Bulk Supplements - Wholesale Ingredients - Bulk Ingredients - BoxNutra - Bulk Supplements -

  BoxNutra4.8(123)

  $38.40
• 

  L-Theanine

  PureBulk4.7(69)

  $11.95Lowest
• 

  L-theanine Powder

  Dolce Superfoods5.0(1)

  $28.85
• 

  Nootropics Depot L-Theanine Capsules

  Nootropics Depot4.5(15)

  $44.99
• 

  BOX Theanine

  BoxNutra4.8(123)

  $54.00

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 (28)

  Vitamin & supplements store

  438 Westport Ave, Norwalk, CT 06851

  Directions(203) 840-0594

• Healing Essence LLC

  5.0 (1)

  Vitamin & supplements store

  9 Mott Ave STE 203, Norwalk, CT 06850

  Directions(203) 939-7335

• The Vitamin Shoppe

  4.0 (95)

  Vitamin & supplements store

  565 Connecticut Ave, Norwalk, CT 06854

  Directions(203) 866-6837

• Morlux Naturals

  5.0 (2)

  Vitamin & supplements store

  304 Main Ave, Norwalk, CT 06851

  Directions

• Rvm Supplements Store

  5.0 (121)

  Vitamin & supplements store

  3634 Main St, Stratford, CT 06614

  Directions(475) 373-5815

• Foundation Vitamins & Sport Supplements

  4.9 (61)

  Vitamin & supplements store

  890 Bridgeport Ave Ste 14, Shelton, CT 06484

  Directions(203) 925-0424

• TheMycoMarket

  Vitamin & supplements store

  41 Cranbury Rd, Norwalk, CT 06851

  Directions(720) 819-1050

• The Vitamin Shoppe

  4.7 (65)

  Vitamin & supplements store

  1003 High Ridge Rd, Stamford, CT 06905

  Directions(203) 609-0147

• Unlocking the potential of l‐α‐glycerylphosphorylcholine in the food industry: From safety approvals to market prospects

  J Cao, E Su - Comprehensive Reviews in Food Science and …, 2025 - Wiley Online Library

  … Neuro Boost Dropper Life Extension Oral liquid Huperzine A, l-theanine … biloba, Panax ginseng) and active compounds (omega-3, l-theanine) can be combined with l-α-GPC in these …

  20254 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2021-10-22. DSLD Label ID: 254806. 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.