L-Theanine 200 mg®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Serving Size: 2 Capsule(s) · 1 per day

Not Present

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  Nature's Craft L-Theanine Alcohol Free Liquid Drops

  Walmart - Natures Craft4.7(141)

  $15.99
• 

  Nature Made Chewable L Theanine Tablets

  Target4.4(68)

  $13.99
• 

  Nature's Truth L-Theanine 200mg 60 Quick Release Capsules

  Meijer4.8(85)

  $13.49
• 

  L-Theanine Solaray

  Instacart4.7(119)

  $21.89
• 

  Bluebonnet Nutrition Bluebonnet L-Theanine 200 mg

  Walmart - Bluebonnet Nutrition3.7(3)

  $11.60
• 

  Now Foods L-Theanine 60 Capsules

  iHerb4.7(1300)

  $15.91
• 

  Jarrow Formulas Theanine 200 mg. 60 Capsules

  Whole Foods Market4.8(1100)

  $26.79
• 

  Best Naturals L-Theanine 200mg Tablets

  Target4.3(29)

  $9.99

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.

• Nutrition Depot

  5.0 (112)

  Vitamin & supplements store

  2005 Southwest Fwy, Houston, TX 77098

  Directions(346) 516-0878

• Supplement Superstore

  5.0 (1389)

  Vitamin & supplements store

  8420 Eager Rd, St. Louis, MO 63144

  Directions(314) 961-3935

• Willner Chemists

  4.7 (146)

  Vitamin & supplements store

  100 Park Ave, New York, NY 10017

  Directions(800) 633-1106

• Supplement Warehouse

  4.7 (229)

  Vitamin & supplements store

  181 W Crossroads Pkwy Ste F, Bolingbrook, IL 60440

  Directions(630) 965-8526

• e-NutritionStore.com

  5.0 (10)

  Vitamin & supplements store

  6010 Meadowridge Center Dr K, Elkridge, MD 21075

  Directions(443) 483-3340

• Lindberg Nutrition

  4.6 (146)

  Vitamin & supplements store

  3804 Sepulveda Blvd, Torrance, CA 90505

  Directions(310) 378-9490

• Hundred

  4.3 (41)

  Vitamin & supplements store

  50 S Center St Ste 3, City of Orange, NJ 07050

  Directions(347) 949-0230

• GNC

  4.7 (202)

  Vitamin & supplements store

  2 Pennsylvania Plaza Ste 29B, New York, NY 10121

  Directions(212) 239-1251

• L-theanine as a functional food additive: Its role in disease prevention and health promotion

  …, A McKune, D Mellor, J Thomas, N Naumovski - 2016 - openresearch.newcastle.edu.au

  … More recently, L-THE (200 mg) was administered in the form of a beverage to 36 healthy … In addition, there is immense interest in L-THE as a supplement as well as a functional food …

  201678 citations

• The effects of green tea amino acid L-theanine consumption on the ability to manage stress and anxiety levels: a systematic review

  …, DD Mellor, N Anstice, N Naumovski - Plant foods for human …, 2020 - Springer

  … The green tea amino acid, L-theanine (L-THE) is associated with several health … as a supplement was compared to a control. Our findings suggest that supplementation of 200–400 mg/…

  2020221 citations

• Green tea and theanine: health benefits

  R Cooper - International journal of food sciences and nutrition, 2012 - Taylor & Francis

  … for 3 months using 100mg of L-theanine and 200 mg of a decaffeinated catechin green tea … 60 and 160 mg of theanine (Figure 2) Theanine is sold as a dietary supplement and has …

  2012134 citations

• L-theanine, unique amino acid of tea, and its metabolism, health effects, and safety

  D Türközü, N Şanlier - Critical reviews in food science and nutrition, 2017 - Taylor & Francis

  … Similarly, instead of 50 mg, 200 mg L-theanine caused increase in the … L-theanine (200 mg), caffeine (100 mg) or placebo and at the end of the study it was found out that L-theanine …

  2017250 citations

• L-theanine: a prospective natural medicine

  S Chatterjee, A Chatterjee… - … sciences review and …, 2016 - researchgate.net

  … information of L- theanine with reference to health benefits. … It was found that intake of 200 mg of L-theanine generated alpha… a dietary supplement, and according to FDA L-theanine can …

  201618 citations

• Cognitive and affective effects of L-Theanine: a systematic review and meta-analysis of 31 randomized trials

  C Gerolymos, E Saddier, L Boyer, G Fond - Molecular Psychiatry, 2026 - nature.com

  … of oral L-theanine supplementation compared to placebo in both … oral dose of L-theanine on stress in healthy adults. Secondary … , single-dose L-theanine (mostly 200 mg) significantly …

  2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2012-07-25. DSLD Label ID: 10681. 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.