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.

• 

  Serene Science Theanine Serene 60 Tablets

  Vitacost.com4.8(477)

  $12.25
• 

  Source Naturals Theanine Serene with Relora - 60 Tablets

  Vitacost.com4.7(831)

  $13.99
• 

  Source Natural, Theanine Serene, 120 table

  Down to Earth Organic & Natural

  $16.99
• 

  Source Naturals L Theanine

  Source Naturals4.7(683)

  $18.98
• 

  Serene Science Optimistic Saffron Complex 30 Tablets

  Source Naturals4.3(3)

  $26.50
• 

  GABA Source Naturals

  Swanson Health Products4.6(616)

  $22.05
• 

  Serene

  recreahealth.com5.0(1)

  $43.00
• 

  Source Naturals L-Theanine 200 mg

  Herbs Direct4.8(36)

  $25.55

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.

• RightNutri

  4.9 (78)

  Vitamin & Supplements Shop

  26 Queenstown Rd, London SW8 3RX

  Directions0800 098 8888

• Nutri Tailor

  5.0 (13)

  Vitamin & Supplements Shop

  85 Great Portland St, London W1W 7LT

  Directions

• The Really Healthy Company

  4.9 (16)

  Vitamin & Supplements Shop

  Unit 1, 2 Royal Oak Yard, London SE1 3GB

  Directions020 8480 1000

• Planetis Natural Health & Nutrition

  5.0 (38)

  Vitamin & Supplements Shop

  32 Clifton Rd, London W9 1ST

  Directions020 7289 4551

• ITL Health

  5.0 (37)

  Vitamin & Supplements Shop

  50 Broadway, London SW1H 0BL

  Directions0118 321 7628

• Protiv Nutrition

  5.0 (1)

  Vitamin & Supplements Shop

  3rd Floor, 207 Regent St., London W1B 3HH

  Directions07442 915758

• Minerva Wellness

  5.0 (21)

  Vitamin & Supplements Shop

  71-75 Shelton St, London WC2H 9JQ

  Directions020 7459 4641

• Nayble Health & Sports

  5.0 (139)

  Vitamin & Supplements Shop

  18 Chamberlayne Rd, London NW10 3JD

  Directions020 7625 5111

• 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: A potential multifaceted natural bioactive amide as health supplement

  R Adhikary, V Mandal - Asian Pacific Journal of Tropical Biomedicine, 2017 - Elsevier

  … , growth supplements or some other therapeutics. l-theanine is such a bioactive amide amino acid presented in different plants and fungi, especially in tea. Theanine has influential …

  201778 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. …

  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

  … may be higher in theanine. Three to four cups of green tea are expected to contain between 60 and 160 mg of theanine (Figure 2) Theanine is sold as a dietary supplement and has …

  2012134 citations

• Herbal and natural supplements for improving sleep: a literature review

  JW Yeom, CH Cho - Psychiatry Investigation, 2024 - pmc.ncbi.nlm.nih.gov

  … supplement, individuals should consult their healthcare providers before using theanine products, particularly if they have underlying health … medications that may interact with theanine. …

  202462 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 2017-04-25. DSLD Label ID: 72573. 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.