L-theanine is a naturally occurring amino acid analogue of glutamate that helps to promote relaxation without adding any components that promote drowsiness. As a result, L-theanine supplementation can help to “take the edge off” of stimulant supplements like caffeine for a more balanced effect. It can also help people fall asleep quicker and easier not by acting as a sedative but by lowering anxiety and promoting relaxation. L-theanine has also been used to help improve mental focus, learning and concentration. (Less stress means there are lower cortisol and corticosterone levels in the body, which affect our cognitive functions.) Due to its calming effects, L-theanine lowers heart rate and blood pressure. Features and Benefits: Helps to promote feelings of relaxation, Non-drowsy alternative to medications, Can help to balance the effects of stimulants naturally, Helps with cognitive function, No dairy, yeast, wheat or corn No eggs, No artificial preservatives, colours or artificial sweeteners Gluten-free, NPN: 80029566, Dosage: Adults: Take 1 capsule per day with a glass of water, Cautions: Do not use if you are pregnant or breastfeeding. Storage: Store in a cool, dry place. References: 1. Asia Pac J Clin Nutr. 2008;17 Suppl 1:167-8. L-theanine, a natural constituent in tea, and its effect on mental state. Nobre AC1, Rao A, Owen GN. 2. Nutrients. 2016 Jan 19;8(1). pii: E53. doi: 10.3390/nu8010053. Anti-Stress, Behavioural and Magnetoencephalography Effects of an L-Theanine-Based Nutrient Drink: A Randomised, Double-Blind, Placebo-Controlled, Crossover Trial. White DJ, de Klerk S, Woods W3, Gondalia S, Noonan C, Scholey AB 3. J Physiol Anthropol. 2012 Oct 29;31:28. doi: 10.1186/1880-6805-31-28. Effects of L-theanine or caffeine intake on changes in blood pressure under physical and psychological stresses. Yoto A, Motoki M, Murao S, Yokogoshi H. 4. Biol Psychol. 2007 Jan;74(1):39-45. Epub 2006 Aug 22. L-Theanine reduces psychological and physiological stress responses. Kimura K, Ozeki M, Juneja LR, Ohira H.