L-Theanine

Suggested Use

Suggested Use: As a dietary supplement; take 1 leveled scoop (~200mg) with 6-8 ounces of water or suitable beverage. Taken 1-2 times daily; preferably on an empty stomach or as directed by a qualified health professional. A micro scale is recommended for accurate measuring.

• 

  Spring Valley L-Theanine Capsules 100 mg 100 Count

  Walmart4.4(296)

  $6.43Lowest
• 

  Double Wood Supplements L-Theanine

  Double Wood Supplements4.8(111)

  $19.95
• 

  Nature Made Chewable L Theanine Tablets

  Target4.4(59)

  $15.79
• 

  Sports Research L-Theanine Suntheanine Softgels

  Sports Research4.7(1000)

  $38.95
• 

  MaryRuth's L-Theanine Liquid Drops

  Walmart - MaryRuths4.8(223)

  $15.37
• 

  Nootropics Depot L-Theanine Capsules

  Nootropics Depot4.5(15)

  $44.99
• 

  Ryno Power Motivation Capsules Single Serving

  Dennis Kirk4.4(41)

  $28.95
• 

  Now Foods L-Theanine 60 Capsules

  Wonder Laboratories4.7(7600)

  $12.56

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.

• Nature's Best

  4.4 (80)

  Vitamin & supplements store

  1340 S Hwy 27, Somerset, KY 42501

  Directions(606) 677-1944

• Next Level Sports Nutrition

  5.0 (647)

  Vitamin & supplements store

  4101 Tates Creek Centre Dr #128, Lexington, KY 40517

  Directions(502) 289-6400

• Nutritional Center

  4.9 (38)

  Health and beauty shop

  802 S 4th St, Danville, KY 40422

  Directions(859) 936-2124

• The Vitamin Shoppe

  4.2 (125)

  Vitamin & supplements store

  4005 Nicholasville Rd, Lexington, KY 40503

  Directions(859) 272-2227

• Cumberland Nutrition LLC

  Vitamin & supplements store

  51 Bernard Ln, Russell Springs, KY 42642

  Directions(270) 866-9493

• New Life Natural Foods

  4.6 (14)

  Vitamin & supplements store

  411 Dons Drive, London, KY 40741

  Directions(606) 878-2806

• GNC

  4.6 (25)

  Vitamin & supplements store

  2055 Lantern Ridge Dr, Richmond, KY 40475

  Directions(859) 625-1600

• Sonshine Natural

  4.8 (24)

  Vitamin & supplements store

  208 Nancy Cox Dr, Campbellsville, KY 42718

  Directions(270) 789-1833

• Examining the effect of L-theanine on sleep: a systematic review of dietary supplementation trials

  J Cotter, CE Caddick, JL Harper… - Nutritional …, 2026 - Taylor & Francis

  … Though many of the included studies were conducted using healthy adults in Japan, beneficial effects of L-theanine on sleep related-measures were also reported in randomised, …

  20269 citations

• Stacker 2 Sleep Chew Gummies 20mg Melatonin In Stock

  T Ten Energy, FT Ten Ephedra, T Ten Pre-Workout… - racerephedra.com

  … the night, these issues can have a significant impact on our health and well-being. One of the most … Another key ingredient is L-theanine, an amino acid found in green tea that promotes …

• A Year of Compassion: 52 Weeks of Living Zero-Waste, Plant-Based, and Cruelty-Free

  C Patrick-Goudreau - 2025 - books.google.com

  … Please consult with your physician or healthcare specialist regarding how the … improve your health, heal our Earth, and prevent violence against animals, the environmental benefits of …

  2025

• Dietary Suspects: Extracting the Truth from Dietary Supplements with a Standardized Federal Testing Seal.

  NA Traver - Arizona State Law Journal, 2023 - arizonastatelawjournal.org

  … Although there are legitimate medical uses of dietary supplements,11 … ,151 L-theanine for ADHD,152 or curcumin (turmeric) extracts for depression,153 they do not intend to supplement …

  20235 citations

• Edge Pump Psycho Pharma Night Time Pre-Workout In Stock

  T Ten Energy, FT Ten Ephedra - racerephedra.com

  … Elevate your cognitive abilities to new heights with Alpha GPC, Lion's Mane, and L-Theanine. … medical advice. Always consult with a healthcare professional before starting any dietary …

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2017-04-25. DSLD Label ID: 72083. 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.