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 Nutrition Bluebonnet L-Theanine 200 mg

  Natures Food Markets4.0(4)

  $10.89
• 

  Bluebonnet Nutrition, L-Theanine

  Mercato.com

  $12.99
• 

  Bluebonnet Nutrition Bluebonnet Targeted Choice Stress Relief

  Walmart - Bluebonnet Nutrition5.0(3)

  $35.16
• 

  BlueBonnet Nutrition L-Theanine 200 mg, 30 Count (Pack of 2)

  Optimist4.0(4)

  $10.21Lowest
• 

  Bluebonnet Nutrition Bluebonnet Targeted Choice Sleep Support

  Walmart - Bluebonnet Nutrition3.8(6)

  $14.36
• 

  Bluebonnet Brain Power Targeted Choice

  Akron Nutrition Center

  $38.49
• 

  Bluebonnet Nutrition Simply Calm Powder For Calm* Muscle Cramps* Stress Relief* Soy-Free Gluten-Free Non-GMO Kosher Certified Dairy-Free Vegan 16 oz

  GoSupps.com

  $54.99
• 

  Bluebonnet Targeted Choice Stress Relief

  Instacart5.0(3)

  $40.79

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

  4.5 (32)

  Vitamin & supplements store

  564 Centerville Rd, Lancaster, PA 17601

  Directions(717) 898-4707

• AdvancedSupps.com

  5.0 (90)

  Vitamin & supplements store

  3872 Union Deposit Rd, Harrisburg, PA 17109

  Directions(717) 553-0500 ext. 2

• The Vitamin Shoppe

  4.6 (126)

  Vitamin & supplements store

  6455 Carlisle Pike, Mechanicsburg, PA 17050

  Directions(717) 791-0120

• Solutions 4 Health

  4.9 (75)

  Vitamin & supplements store

  165B Swedesford Rd, Wayne, PA 19087

  Directions(610) 293-2324

• The Expert Nutrition Center

  4.6 (33)

  Vitamin & supplements store

  10210 S Dolfield Rd, Owings Mills, MD 21117

  Directions(888) 794-4325

• The Vitamin Shoppe

  4.6 (120)

  Vitamin & supplements store

  2383 Cottman Ave Suite 38B, Philadelphia, PA 19149

  Directions(215) 331-2023

• GNC

  4.0 (48)

  Vitamin & supplements store

  3566 Capital City Mall Dr #248, Camp Hill, PA 17011

  Directions(717) 761-9923

• The Vitamin Shoppe

  4.4 (104)

  Vitamin & supplements store

  2460 Market St NE #701, Washington, DC 20018

  Directions(202) 269-0809

• 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 …

  202529 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 …

  202512 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 …

• Blood Pressure: That Magic Number

  T Person - wholefoodsmagazine.com

  … and national educator for Bluebonnet Nutrition Corporation, Sugar … and cardiovascular health in general, according to Schönlau. … blood pressure saw no change when taking L-theanine. …

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: 176534. 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.