Thea

  • Focus
  • Liver Health
  • Stress Relief
5.0
Rated 5.0 out of 5 stars
26 Reviews
Regular price $20.00 USD Sale price $20.00 USD Regular price $20.00 USD
Description

Theanine Capsules

L-Theanine (99+% purity) in a bovine gelatin capsule. Nothing else. 

L-Theanine is typically known for its benefits on focus, relaxation, memory, and calm alertness. While these benefits are pretty well documented and enjoyed by many, there is actually more to this great Theanine story, check the product background tab to learn more.

Third-party lab-tested for purity.

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  • Stress management*
  • Calm attentiveness*
  • Focus and Memory*
  • Mood elevation*
  • Regulation of caffeine overstimulation*
  • Neuroprotection*
  • Liver protection*
  • Bile acid regulation*
  • Improved lipid metabolism*

*These Statements have not been evaluated by the Food and Drug Association, or Health Canada. These products are not meant to diagnose, treat, cure, or prevent any diseases.

Each bottle contains: 90 capsules
Servings per container: 90

Each capsule contains: L-Theanine: 500mg

Other ingredients: gelatin (bovine)

Take 1 capsule daily, with or without food, at any time of day.

Can be beneficial to take in conjunction with caffeinated beverages to avoid caffeine overstimulation & crash.

1. Wang D, Gao Q, Zhao G, Kan Z, Wang X, Wang H, Huang J, Wang T, Qian F, Ho CT, Wang Y. Protective Effect and Mechanism of Theanine on Lipopolysaccharide-Induced Inflammation and Acute Liver Injury in Mice. J Agric Food Chem. 2018 Jul 25;66(29):7674-7683. doi: 10.1021/acs.jafc.8b02293. Epub 2018 Jul 12. PMID: 29969892.

2. Li G, Ye Y, Kang J, Yao X, Zhang Y, Jiang W, Gao M, Dai Y, Xin Y, Wang Q, Yin Z, Luo L. l-Theanine prevents alcoholic liver injury through enhancing the antioxidant capability of hepatocytes. Food Chem Toxicol. 2012 Feb;50(2):363-72. doi: 10.1016/j.fct.2011.10.036. Epub 2011 Oct 14. PMID: 22019691.

3. Li MY, Liu HY, Wu DT, Kenaan A, Geng F, Li HB, Gunaratne A, Li H, Gan RY. L-Theanine: A Unique Functional Amino Acid in Tea (Camellia sinensis L.) With Multiple Health Benefits and Food Applications. Front Nutr. 2022 Apr 4;9:853846. doi: 10.3389/fnut.2022.853846. PMID: 35445053; PMCID: PMC9014247.

4. Liang J, Gu L, Liu X, Yan X, Bi X, Fan X, Zhou J, Lu S, Luo L, Yin Z. L-theanine prevents progression of nonalcoholic hepatic steatosis by regulating hepatocyte lipid metabolic pathways via the CaMKKβ-AMPK signaling pathway. Nutr Metab (Lond). 2022 Apr 15;19(1):29. doi: 10.1186/s12986-022-00664-6. PMID: 35428314; PMCID:
PMC9013079.

5. Zeng L, Lin L, Peng Y, Yuan D, Zhang S, Gong Z, Xiao W. l-Theanine attenuates liver aging by inhibiting advanced glycation end products in d-galactose-induced rats and reversing an imbalance of oxidative stress and inflammation. Exp Gerontol. 2020 Mar;131:110823. doi: 10.1016/j.exger.2019.110823. Epub 2019 Dec 31. PMID: 31899338.

6. Unno K, Iguchi K, Tanida N, Fujitani K, Takamori N, Yamamoto H, Ishii N, Nagano H, Nagashima T, Hara A, Shimoi K, Hoshino M. Ingestion of theanine, an amino acid in tea, suppresses psychosocial stress in mice. Exp Physiol. 2013 Jan;98(1):290-303. doi: 10.1113/expphysiol.2012.065532. Epub 2012 Jun 15. PMID: 22707502.

7. Peng WQ, Xiao G, Li BY, Guo YY, Guo L, Tang QQ. l-Theanine Activates the Browning of White Adipose Tissue Through the AMPK/α-Ketoglutarate/Prdm16 Axis and Ameliorates Diet-Induced Obesity in Mice. Diabetes. 2021 Jul;70(7):1458-1472. doi: 10.2337/db20-1210. Epub 2021 Apr 16. PMID: 33863801.

8. Yang L, Zhang L, Zhang P, Zhou Y, Huang X, Yan Q, Tan Z, Tang S, Wan F. Alterations in nutrient digestibility and performance of heat-stressed dairy cows by dietary L-theanine supplementation. Anim Nutr. 2022 Aug 11;11:350-358. doi: 10.1016/j.aninu.2022.08.002. PMID: 36329682; PMCID: PMC9618971.

9. Xu W, Kong Y, Zhang T, Gong Z, Xiao W. L-Theanine regulates lipid metabolism by modulating gut microbiota and bile acid metabolism. J Sci Food Agric. 2023 Feb;103(3):1283-1293. doi: 10.1002/jsfa.12222. Epub 2022 Sep 23. PMID: 36087337.

10. Zhang G, Miura Y, Yagasaki K. Effects of dietary powdered green tea and theanine on tumor growth and endogenous hyperlipidemia in hepatoma-bearing rats. Biosci Biotechnol Biochem. 2002 Apr;66(4):711-6. doi: 10.1271/bbb.66.711. PMID: 12036040.

*These statements are not approved or regulated by the FDA or Health Canada. 

5.0
Rated 5.0 out of 5 stars
Based on 26 reviews
Total 5 star reviews: 26 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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26 reviews
  • DS
    DOMENICO S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    THEANINE

    Products very well-sourced with unwanted fillers and synergistically compatible,

    Living in Australia a long way but packaging always survives the trip to get to me in one piece.

  • BJ
    Brent J.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Solid product

    Better than other L-Theanine’s I’ve had before. I like the higher dosage vs most brands and made in USA without fillers and garbage. Look forward to trying a few of the other products!

  • MW
    Maggie W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Outstanding Product!

    The product is pure and high quality. I feel fantastic taking it! Very surprised but happy! Highly recommended.

  • BW
    Billy W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Enjoy

    Enjoying the product.

  • ZC
    Zaakiya C.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Very calming

    This product is INCREDIBLY calming! I love taking this before bed; it helps me fall asleep and stay asleep. It is also great for enhancing productivity when working. I do computer programming, so consuming this helps with processing information more efficiently. This is also excellent for curbing crashes from caffeine!

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