L-theanine References

  1. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial. Nutrients, 11(10), 2362. Hidese, S., Ogawa, S., Ota, M., Ishida, I., Yasukawa, Z., Ozeki, M., & Kunugi, H. (2019). 
  2. Theanine, r-glutamylethylamide, increases neurotransmission concentrations and neurotrophin mRNA levels in the brain during lactation. Life sciences, 81(16), 1247–1255. Yamada, T., Terashima, T., Wada, K., Ueda, S., Ito, M., Okubo, T., Juneja, L. R., & Yokogoshi, H. (2007). 
  3. Effects of Theanine on the Release of Brain Alpha Wave in Adult Males. Korean Journal of Nutrition, 36(9), 918–923. Song, C. H., Jung, J. H., Oh, J. S., & Kim, K. S. (2003).
  4. . A double-blind, placebo-controlled study evaluating the effects of caffeine and L-theanine both alone and in combination on cerebral blood flow, cognition and mood. Psychopharmacology, 232(14), 2563–2576. Dodd, F. L., Kennedy, D. O., Riby, L. M., & Haskell-Ramsay, C. F. (2015)
  5. Acute effects of tea constituents L-theanine, caffeine, and epigallocatechin gallate on cognitive function and mood: A systematic review and meta-analysis. Nutrition reviews. Camfield, David & Stough, Con & Farrimond, Jonathon & Scholey, Andrew. (2014). 
  6. L-Theanine reduces psychological and physiological stress responses. Biological psychology, 74(1), 39–45. Kimura, K., Ozeki, M., Juneja, L. R., & Ohira, H. (2007).
  7. Neurobiological effects of the green tea constituent theanine and its potential role in the treatment of psychiatric and neurodegenerative disorders. Nutritional neuroscience, 17(4), 145–155. Lardner A. L. (2014).

Our Irish Founder 

I'm Amy, the founder of  Earth's Secret. Inspired by my mum's embrace of natural wellness during her courageous battle with cancer, I founded Earth's Secret. It's my passion to bring you products that are not only pure but truly make a difference. We're here to do more than just promise; we're here to deliver real results.

Amy Peacock 
Founder Earth's Secret 

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