Skip to content

What is L-theanine?

Share That Post

You’ve probably never heard of L-theanine, but you will quickly figure out what it is. It is neither a new technology or a chemical product. It’s a natural ingredient in Slow Cow soothing drink. The original recipe for this ‘’Mind Cooler’’ contains 6 herbal extracts and one of the most important is L-theanine. This is an amino acid predominant in the tea leaf. Acting on dopamine, serotonin and GABA, it helps build a sense of well-being that naturally reduces stress and anxiety, also having beneficial effects on attention, concentration and quality of sleep. (1)

Where can we find L-theanine?

L-theanine comes from nature, but more specifically from plant and fungal (mushroom) species. This ingredient is found in the shrubs called tea plants in which the tea leaves grow.

The effects of L-theanine on humans

According to Health Canada, L-theanine helps to temporarily promote a state of relaxation, and the Natural Products Directorate of Canada (NHPD) describes this amino acid as a natural product that acts positively on the body and mind. It allows for better concentration and helps reduce anxiety.
It is taken orally as directed by Health Canada and is safe. So it is worth trying Slow Cow drink which contains 132 mg per can to see the effect the drink has on you. For more information on the ingredients of Slow Cow ‘’Mind Cooler, visit us at

(1) Nathan, PJ; Lu, K; Gray, M; Oliver, C (2015-04-20). “The neuropharmacology of L-theanine(N-ethyl-L-glutamine): a possible neuroprotective and cognitive enhancing agent”. J Herb Pharmacother. 6 (2): 21–30. doi:10.1300/J157v06n02_02. PMID 17182482.