Theanine Serene®®

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 Tablet(s) · 1 per day

Percent Daily Values (% DV) are based on a 2,000 calorie diet.

• 

  Source Naturals Serene Science Theanine Serene 120 Tablets

  PureFormulas.com4.8(477)

  $22.39
• 

  Source Naturals Theanine Serene with Relora - 60 Tablets

  Walmart - Health Chest4.7(831)

  $19.50
• 

  Source Naturals L Theanine

  Herbs Direct4.7(683)

  $13.13
• 

  Source Naturals L-Theanine 200 mg

  Walmart4.8(36)

  $32.97
• 

  Source Natural, Theanine Serene, 120 table

  Down to Earth Organic & Natural

  $16.99
• 

  GABA Source Naturals

  iHerb4.6(616)

  $12.59
• 

  Serene Science Optimistic Saffron Complex 30 Tablets

  Instacart4.3(3)

  $27.89
• 

  Caffeine + L-Theanine Source Naturals

  HerbsPro.com4.7(30)

  $9.09Lowest

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.

• ProFit Vitamins

  4.8 (17)

  Vitamin & Supplements Shop

  5 Capesthorne Walk, Denton, Manchester M34 6EX

  Directions07851 057041

• Silver Sage Health & Nutrition

  5.0 (18)

  Health food shop

  9 Hulme High St, Hulme, Manchester M15 5JR

  Directions0161 226 2003

• Big Bear Store Ltd

  4.9 (111)

  Vitamin & Supplements Shop

  2B Wilmslow Rd, Greater, Manchester M14 5TP

  Directions07938 009028

• Stockport Supplements Reddish

  5.0 (101)

  Vitamin & Supplements Shop

  110 Gorton Rd, Reddish, Stockport SK5 6UE

  Directions07932 353033

• Empire Supplements

  4.8 (44)

  Vitamin & Supplements Shop

  893 Stockport Rd, Manchester M19 3PG

  Directions07757 605326

• Vitamin Store Salford

  4.9 (143)

  Vitamin & Supplements Shop

  Unit 2 Broughton Rd, Manchester, Salford M6 6GG

  Directions0161 737 9283

• KutrybX Supplements

  5.0 (19)

  Vitamin & Supplements Shop

  Dance Studio, Parkers Hotel, Corporation St, GFFDamian M4 4DX

  Directions07570 244398

• Health Supplements Direct

  4.0 (4)

  Vitamin & Supplements Shop

  57, 63 Cheetham Hill Rd, Cheetham Hill, Manchester M8 8FS

  Directions020 8123 8207

• Subjective assessment of the effects of an herbal supplement containing lavender essential oil on sleep quality: A randomized, double-blind, placebo-controlled …

  N Stevens, J Dorsett, A DaBell, DL Eggett, X Han… - Cogent …, 2017 - Taylor & Francis

  … oral supplement (dōTERRA Serenity™ Restful Complex Softgels) containing lavender essential oil, L-theanine, … Our objective was to assess how Serenity affects sleep quality in healthy …

  201716 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

  … use of l-theanine supplements at pharmacologic doses by the wider population, and believe … the science does not yet match the hype behind this trending supplement for brain health …

  202526 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

  … health effects. Although the catechins and caffeine are the primary bioactive components that are related with the health effects of the tea, the health effects of theanine … that the theanine …

  2017250 citations

• Green tea and theanine: health benefits

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

  … Numerous scientific publications now attest to the health benefits of both black and green teas, including clinical and epidemiological studies. Although all tea contains beneficial …

  2012134 citations

• L-Theanine for Dissociation: Promoting Calm and Presence

  TY Order, USD Australia, EUR Finland, EUR France… - moodriselabs.com

  Dissociation is one of the most complex and misunderstood experiences in mental health. It’s that drifting sensation where your mind and body seem to disconnect—time slows, reality …

• 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

  … However, despite most of the health benefits of GT being ascribed to catechins, particularly … compounds with evidence of positive effects on health. In this regard, l-theanine (l-THE) has …

  201983 citations

• Magnesium Forms Explained: Oxide, Citrate, and Glycinate

  The magnesium form on a label affects how much elemental magnesium you get. Here is how the common forms compare.

  VitaSuppTrack Editorial· Jun 24, 2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2023-01-23. DSLD Label ID: 273363. 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.