L-Theanine

Suggested Use

Recommendations: As a dietary supplement; take 2 capsules; 1-3 times daily; between meals.

• 

  L-Theanine Pure Encapsulations

  Pure For You4.7(149)

  $65.50
• 

  Pure Encapsulations - L-Theanine

  EarthTurns.com4.7(149)

  $65.50
• 

  Pure Encapsulations L-Theanine

  mountainsidepharmacy.org/online-store4.7(149)

  $107.00
• 

  Pure Encapsulations l Theanine

  Waters Wellness4.7(149)

  $65.50
• 

  Pure Encapsulations l-Theanine

  Towncrest Pharmacy4.7(149)

  $61.00
• 

  Pure Encapsulations Daily Calm 60 Capsules

  Pure For You5.0(4)

  $50.00
• 

  Pure Encapsulations Rapid Mental Energy 30 Capsules

  Walmart - Pattern4.0(3)

  $35.00
• 

  Pure Encapsulations Daily Stress Formula 90 Capsules

  Pure Prescriptions4.9(58)

  $41.50

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.

• National Discount Nutrition

  4.8 (75)

  Vitamin & supplements store

  2857 Raleigh Rd Pkwy W, Wilson, NC 27896

  Directions(252) 206-1636

• Nutrishop Wake Forest

  5.0 (106)

  Vitamin & supplements store

  The Shoppes at Heritage 1040, 1040 Forestville Rd Ste 116A, Wake Forest, NC 27587

  Directions(919) 570-0502

• All Pro Nutrition Raleigh

  4.9 (221)

  Vitamin & supplements store

  5910 Duraleigh Rd Ste 135, Raleigh, NC 27612

  Directions(919) 781-1636

• GNC

  4.6 (109)

  Vitamin & supplements store

  1016 Shoppes At Midway Dr, Knightdale, NC 27545

  Directions(919) 679-3020

• The Vitamin Shoppe

  4.4 (195)

  Vitamin & supplements store

  411 E Six Forks Rd, Raleigh, NC 27609

  Directions(919) 828-8673

• Bevko Vitamins

  4.7 (32)

  Vitamin & supplements store

  6008 Creedmoor Rd, Raleigh, NC 27612

  Directions(919) 676-8002

• GNC

  4.7 (196)

  Vitamin & supplements store

  11781 US Highway 70 West, Clayton, NC 27520

  Directions(919) 879-8100

• The Vitamin Shoppe

  4.5 (80)

  Vitamin & supplements store

  12616 Capital Blvd Suite 200, Wake Forest, NC 27587

  Directions(919) 569-0015

• Effects of combined GABA and L-theanine supplementation on sleep quality: an exploratory study

  H Konno, K Naganuma… - … review for medical and …, 2026 - europeanreview.org

  … the use of test supplements (GABA and L-theanine) from the start of supplement intake. The … GABA 700 mg and L-theanine 200 mg; PURE Encapsulations, Nestle Health Science, Tokyo…

  2026

• An Exploratory Study to Detect the Effects of the Combined Intake of Gamma-aminobutyric Acid (GABA) and L-theanine on Sleep by Wearable Device

  H Konno, R Murotani, Y Kamada - medRxiv, 2023 - medrxiv.org

  … ) taken from the start of supplement intake. The participants took the study supplements GABA 700 mg and L-theanine 200 mg (PURE Encapsulations, Nestle Health Science, Tokyo, …

  20232 citations

• Calcium alginate STB microgels co-administering L-theanine and Blautia coccoides are associated with ameliorate obesity and metabolic syndrome in mice …

  L Li, Z Huang, J Liang, Y Jin, W Peng - Chemical Engineering Journal, 2026 - Elsevier

  … evolved into a global public health crisis, often rooted in … high relative abundance in the healthy adult gut and often … is significantly lower than in healthy populations. Moreover, its …

  2026

• 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 … in the use of l-theanine supplements at pharmacologic doses … this trending supplement for brain health and relaxation. …

  202525 citations

• L-theanine: A potential multifaceted natural bioactive amide as health supplement

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

  … in modern therapeutics, which are used to prepare antibiotics, growth supplements or some other therapeutics. l-theanine is such a bioactive amide amino acid presented in different …

  201778 citations

• Instrument-Assisted Spinal Manipulation, Soft Tissue Mobilization, and Dietary Supplements for the Management of Pain in a Woman With Fibromyalgia: A Case …

  AJ McRoberts, BR Martin - Journal of Chiropractic Medicine, 2025 - jcm.kglmeridian.com

  … The patient consented to having her health information … The supplements administered qd at a dosage of 2500 mg of … Deal Supplement, 200 mg of l-theanine from Pure Encapsulations (…

  2025

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2019-01-07. DSLD Label ID: 184585. 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.