Theanine 100 mg

Suggested Use

USAGE: Take 1 capsule 1 or 2 times per day with water or juice on an empty stomach or as directed by your qualified health care consultant.

• 

  Jarrow Formulas Theanine 100 mg 60 Capsules

  iHerb4.8(989)

  $15.59
• 

  Jarrow Formulas Theanine 200 mg. 60 Capsules

  Whole Foods Market4.8(1000)

  $32.99
• 

  Jarrow Formulas Jarrow Theanine 200 mg 60 Caps

  Eddie's Health Shoppe4.8(1000)

  $24.99
• 

  Jarrow Formulas Theanine 200mg 60 Capsules (2 Pack)

  Pure Prescriptions4.8(989)

  $32.49
• 

  Jarrow Formulas Theanine 100mg Apple Flavor 60 Gummies

  The Vitamin Shoppe4.8(26)

  $26.99
• 

  Jarrow Formulas GABA Soothe Capsules

  Jarrow Formulas4.7(238)

  $27.99
• 

  Theanine 100mg Stress and Mood Lozenges

  Down to Earth Organic & Natural

  $20.59
• 

  L-Theanine

  Enar Pharma

  $9.08Lowest

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.

• The Vitamin Shoppe

  4.3 (72)

  Vitamin & supplements store

  1 Sagamore Pkwy S c, Lafayette, IN 47905

  Directions(765) 448-3620

• GNC

  3.9 (65)

  Vitamin & supplements store

  2415 Sagamore Pkwy S, Lafayette, IN 47905

  Directions(765) 447-0027

• Cutting Edge Nutrition

  4.9 (134)

  Vitamin & supplements store

  8282 Center Run Dr, Indianapolis, IN 46250

  Directions(317) 585-0605

• PointBlank Nutrition

  4.9 (137)

  Vitamin & supplements store

  2784 E 146th St, Carmel, IN 46033

  Directions(317) 569-5368

• ISG Supplements

  4.8 (5)

  Vitamin & supplements store

  1714 E Main St, Crawfordsville, IN 47933

  Directions(765) 592-1857

• Dr. Logan's Natural Supplement Pharmacy

  5.0 (60)

  Vitamin & supplements store

  8497 Fishers Center Dr, Fishers, IN 46038

  Directions(317) 598-4325

• The Vitamin Shoppe

  4.5 (148)

  Vitamin & supplements store

  10979 E US Hwy 36, Avon, IN 46123

  Directions(317) 273-0476

• GNC

  3.4 (55)

  Vitamin & supplements store

  4557 Lafayette Rd, Indianapolis, IN 46254

  Directions(317) 297-3733

• L-Theanine Nootropic Review: Benefits, Side Effects & Dosage

  HMDLT Cost - nootropicology.com

  … can be purchased from various sources, including health food stores, online retailers, and supplement shops. Reputable brands like NOW Foods, Jarrow Formulas, and Thorne …

• The beneficial health effects of green tea amino acid l‐theanine in animal models: Promises and prospects for human trials

  J Williams, D Sergi, AJ McKune… - Phytotherapy …, 2019 - Wiley Online Library

  … This study provided evidence that l-THE (10–100 mg/kg/day) attenuated ovalbumin-induced airway inflammation in mice by reducing reactive oxygen species generation, decreasing …

  201982 citations

• l-theanine: From tea leaf to trending supplement–does the science match the hype for brain health and relaxation?

  R Dashwood, F Visioli - Nutrition Research, 2025 - Elsevier

  … of this nutraceutical supplement marketed for brain health and … the use of l-theanine supplements at pharmacologic doses by … this trending supplement for brain health and relaxation. …

  202525 citations

• Improvement of both human and animal memory by synergy between fructooligosaccharide and L‐theanine function establishing a safe and effective food supplement

  Y Li, Y Jiang, Z Zhang, VIP Loake, X Bao… - Food science & …, 2024 - Wiley Online Library

  … in our animal tests at a dose of 100 mg/kg (coefficient of drug interaction (CDI… healthy adults after 1 month of consumption. Our results suggest that a combination of FOS and L-theanine …

  202412 citations

• Coenzyme Q10 Protects A Breaking Heart

  A Thomas - jarrow.com

  A landmark study published in the Journal of the American College of Cardiology: Heart Failure reported supplementation with coenzyme Q 10(CoQ 10) reduced medical complications …

• Keyora Research Notes Series (L-Theanine Episode 10): Mapping L-Theanine to Your Neurobiology-Safety, Dosage, and Functional Timing Protocols

  J Xu - Keyora Nutritional Neurology, 2025 - academia.edu

  … measures of anxiety in healthy human subjects using the model of anticipatory anxiety (AA). Sixteen healthy volunteers received alprazolam (1 mg), L-theanine (200 mg) or placebo in a …

  2025

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2012-04-26. DSLD Label ID: 7623. 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.