Scientific citations

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  • Higashiyama, A., Htay, H. H., Ozeki, M., Juneja, L. R., & Kapoor, M. P. (2011). Effects of L-theanine on attention and reaction time response. Journal of Functional Foods, 3(3), 171-178.

  • Kamei T, Toriumi Y, Kimura H, Ohno S, Kumano H, Kimura K: Decrease in serum cortisol during yoga exercise is correlated with alpha wave activation. Percept Mot Skills 2000;90:1027-1032.

  • Kimura, K., Ozeki, M., Juneja, L. R., & Ohira, H. (2007). L-Theanine reduces psychological and physiological stress responses. Biological psychology, 74(1), 39-45.

  • Lardner AL: Neurobiological effects of the green tea constituent theanine and its potential role in the treatment of psychiatric and neurodegenerative disorders. Nutr Neurosci 2014;17:145-155.

  • Nobre AC, Rao A, Owen GN: L-theanine, a natural constituent in tea, and its effect on mental state. Asia Pac J Clin Nutr 2008;17 Suppl 1:167-168.

  • Park, S. K., Jung, I. C., Lee, W. K., Lee, Y. S., Park, H. K., Go, H. J., ... & Rho, S. S. (2011). A combination of green tea extract and L-theanine improves memory and attention in subjects with mild cognitive impairment: a double-blind placebo-controlled study. Journal of medicinal food, 14(4), 334-343.

  • Sacchet MD, LaPlante RA, Wan Q, Pritchett DL, Lee AK, Hamalainen M, Moore CI, Kerr CE, Jones SR: Attention drives synchronization of alpha and beta rhythms between right inferior frontal and primary sensory neocortex. J Neurosci 2015;35:2074-2082.

  • Sakato, Y. (1949). The chemical constituents of tea: III. A new amide theanine. Nippon Nogeikagaku Kaishi, 23, 262-267.

  • Schutter DJ, van HJ: Salivary cortisol levels and the coupling of midfrontal delta-beta oscillations. Int J Psychophysiol 2005;55:127-129.

  • Song, C. H., Jung, J. H., Oh, J. S., & Kim, K. S. (2003). Effects of theanine on the release of brain alpha wave in adult males. Korean Journal of Nutrition, 36(9), 918-923.

  • White DJ, de KS, Woods W, Gondalia S, Noonan C, Scholey AB: Anti-Stress, Behavioural and Magnetoencephalography Effects of an L-Theanine-Based Nutrient Drink: A Randomised, Double-Blind, Placebo-Controlled, Crossover Trial. Nutrients 2016;8.

  • Williams J, Kellet J, Roach PD, McKune A, Mellor D, Thomas J, Naumovski N: L-Theanine as a functional food additive: its role in disease prevention and health promotion. Beverages 2016;2.