L-Theanine 150 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: 1 Capsule(s) · 1 per day

Not Present

• 

  Bluebonnet - L-Theanine 150 Mg - 30 vc

  Natures Food Markets3.7(3)

  $10.89Lowest
• 

  Bluebonnet Nutrition Bluebonnet L-Theanine 200 mg

  Walmart - Bluebonnet Nutrition3.7(3)

  $11.60
• 

  Bluebonnet L-Theanine 150 mg

  Mercato.com3.7(3)

  $14.67
• 

  Bluebonnet Nutrition Bluebonnet Targeted Choice Stress Relief

  Walmart - Bluebonnet Nutrition5.0(3)

  $18.00
• 

  Doctor's Best Suntheanine L-Theanine Veggie Caps

  Swanson Health Products4.7(1500)

  $24.59
• 

  Bluebonnet Targeted Choice Sleep Support

  Walmart - Bluebonnet Nutrition4.5(4)

  $14.36
• 

  Bluebonnet Nutrition Bluebonnet Simply Calm Powder

  Walmart - Harvest Moon Natural Foods4.8(12)

  $23.96
• 

  Bluebonnet Nutrition Targeted Choice Sleep Support

  Highland Health Foods3.6(5)

  $35.95

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• BioTechUSA Belle Epine

  4.7 (147)

  Vitamin & supplements store

  Centre Commercial Belle Epine, Rue du Luxembourg Niveau 1, 94320 Thiais

  Directions01 46 75 06 71

• Liv Pure Energy

  Vitamin & supplements store

  11 Rue Louis le Grand, 75002 Paris

  Directions01 34 57 94 59

• TestoBoost - Tongkat Ali et Compléments alimentaires

  5.0 (2)

  Vitamin & supplements store

  2 Rue Marguerite Moret, 75011 Paris

  Directions07 56 93 09 34

• Vitamin Shop Levallois

  5.0 (615)

  Vitamin & supplements store

  83 Rue Victor Hugo, 92300 Levallois-Perret

  Directions01 42 70 45 01

• BioTechUSA Forum des Halles

  4.8 (174)

  Vitamin & supplements store

  CC Forum des Halles, 101 Porte Berger, 75001 Paris

  Directions01 42 33 51 05

• Naturay | Compléments alimentaires fabriqués en France

  1.0 (1)

  Vitamin & supplements store

  66 Av. des Champs-Élysées, 75008 Paris

  Directions

• Vitamin Shop Paris

  5.0 (925)

  Vitamin & supplements store

  3 Rue de Vintimille, 75009 Paris

  Directions01 71 20 61 07

• Toutelanutrition.com

  4.7 (324)

  Vitamin & supplements store

  154 Bd de Grenelle, 75015 Paris

  Directions01 43 06 74 27

• Benefits of l-theanine supplementation and its possible role in clinical use–review

  K Womperski, J Woźniak, J Szymonik, S Szopa… - Quality in Sport, 2024 - apcz.umk.pl

  … One of them – l-theanine - seems to have a multidirectional influence on human health. … goal of this paper is to review the advantages and potential risks of l-theanine supplementation. …

  20242 citations

• The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis

  A Bulman, NM D'Cunha, W Marx, M Turner… - Sleep medicine …, 2025 - Elsevier

  … in the management of sleep disturbances; however, the lack of studies on “pure” L-theanine … of L-theanine supplementation for improving and maintaining sleep quality in healthy and …

  202535 citations

• … of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic …

  ER Payne, M Aceves-Martins, J Dubost… - Nutrition …, 2025 - academic.oup.com

  … as caffeine, l-theanine (theanine herein), and tea polyphenols, 1 , 2 have the potential to improve one’s health and well-being. Drinking black tea and supplementation with green tea …

  202514 citations

• Effect of a combination of magnesium, B vitamins, Rhodiola, and green tea (L-theanine) on chronically stressed healthy individuals—A randomized, placebo …

  L Noah, V Morel, C Bertin, E Pouteau, N Macian… - Nutrients, 2022 - mdpi.com

  … trials evaluating the effect of dietary supplements in healthy individuals who report stress. … the dietary supplement Mg-Teadiola versus a placebo in stressed, healthy individuals scoring …

  202241 citations

• Getting a Head Start

  K Chiarello-Ebner - wholefoodsmagazine.com

  … at Bluebonnet Nutrition Corporation, Sugar Land, TX, explains that omega-3 fatty acids also support healthy inflammation levels, which can support brain health. … , SAMe, L-theanine and …

• BravoYogurtCanada. com

  T Madison - bravoyogurtcanada.com

  … L-theanine clearly has a pronounced effect on attention performance and reaction time response in normal healthy … Instead, I propose that we put age limits on supplements like these. …

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2018-04-25. DSLD Label ID: 176537. 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.