L-Theanine®

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.

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

Not Present

• 

  DaVinci Labs L-Theanine Capsules

  DaVinci Labs4.8(32)

  $28.60
• 

  DaVinci Labs L-Theanine 120 Capsules

  DaVinci Labs4.8(31)

  $80.20
• 

  DaVinci Labs Liposomal L-Theanine

  Target4.7(65)

  $46.46
• 

  DaVinci Neuro Benefits 90 Capsules

  DaVinci Labs4.3(3)

  $64.70
• 

  DaVinci Laboratories Thermoset 90 Capsules

  DaVinci Labs5.0(2)

  $55.78
• 

  Little DaVinci Calm Citrate Powder

  DaVinci Labs4.3(21)

  $46.46
• 

  DaVinci Labs Sleep Benefits 60 Capsules

  DaVinci Labs4.7(18)

  $58.50
• 

  DaVinci Labs Sleep Complete Dietary Supplement

  Target4.2(6)

  $58.50

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

  4.1 (50)

  Vitamin & supplements store

  935 Riverdale St SPACE F-109, West Springfield, MA 01089

  Directions(413) 747-5392

• The Vitamin Shoppe

  4.1 (51)

  Vitamin & supplements store

  239 Whiting Farms Rd, Holyoke, MA 01040

  Directions(413) 538-4775

• Absolute Nutrition Center

  5.0 (35)

  Vitamin & supplements store

  1485 Memorial Dr, Chicopee, MA 01020

  Directions(413) 535-1111

• Hytamins

  Vitamin & supplements store

  103 Davenport St, Springfield, MA 01119

  Directions(413) 219-5496

• The Vitamin Shoppe

  4.2 (90)

  Vitamin & supplements store

  103 Elm St, Enfield, CT 06082

  Directions(860) 253-9082

• Nutrition Island LLC

  5.0 (48)

  Sports nutrition store

  2660 Main St, Springfield, MA 01107

  Directions(413) 309-6743

• Holyoke Nutrition

  4.5 (8)

  Health food store

  331 High St, Holyoke, MA 01040

  Directions(413) 315-3064

• Tropical Nutrition

  5.0 (20)

  Sports nutrition store

  195B Pine St, Springfield, MA 01105

  Directions(646) 704-7848

• Anti-stress, behavioural and magnetoencephalography effects of an L-theanine-based nutrient drink: a randomised, double-blind, placebo-controlled …

  DJ White, S De Klerk, W Woods, S Gondalia, C Noonan… - Nutrients, 2016 - mdpi.com

  … Based on these potential benefits to mood and general health, l-theanine is emerging as an ingredient of interest for functional foods and drinks, either synthesised or extracted from …

  2016180 citations

• … and L-theanine beverage consumption does not alter anxiety, fatigue, cognitive function, or natural killer cell function: A randomized, controlled trial in healthy …

  A Ramani, R Townsend, E Rodriguez… - Brain Behavior and …, 2024 - Elsevier

  … containing CBD, along with L-theanine, would improve psychological health, cognitive function, … and function in young, healthy adults. A total of 102 healthy participants were randomly …

  20246 citations

• Impact of L-theanine and L-tyrosine on markers of stress and cognitive performance in response to a virtual reality based active shooter training drill

  MJ McAllister, MH Martaindale, CC Dillard… - Stress, 2024 - Taylor & Francis

  … Ingestion of L-theanine and L-tyrosine has been shown to reduce salivary stress biomarkers … However, there have been no studies to concurrently examine the impact of both L-theanine …

  202411 citations

• Innovative therapies for mood disorders: A case report

  K Ross, M VanNortwick, D Dragone - Explore, 2021 - Elsevier

  … Health Organization has identified mental wellness issues as the leading contributor to global health … L-theanine is different than other amino acids as its primary dietary source comes …

  20215 citations

• Measuring the effects of caffeine and L-theanine on cognitive performance: a protocol for self-directed, mobile N-of-1 studies

  E Golden, M Johnson, M Jones, R Viglizzo… - Frontiers in Computer …, 2020 - frontiersin.org

  … These exclusion criteria are based on the potential negative health effects of caffeine 7 . Before joining the study, we advise individuals to consult a medical professional if they are …

  202011 citations

• Safety and Efficacy of AlphaWave®l-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo …

  M Moulin, DC Crowley, L Xiong, N Guthrie… - Neurology and …, 2024 - Springer

  … AlphaWave ® l-Theanine has been previously shown to … l-Theanine on stress among a moderately stressed, healthy … the safety and benefits of the longer-term use of l-theanine for self-…

  202427 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2013-06-25. DSLD Label ID: 22876. 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.