Non-alcoholic beverages comprise of Caffeine and L-theanine as core ingredients. Caffeine is attributed to augment cardiovascular and neurophysiological responses by enhancing the neurotransmission of catecholamines after binding with adenosine receptors antagonistically. L-theanine. as a constituent of green tea is helpful in lowering blood pressure by antagonizing the effects of exc... https://jalyttlers.shop/product-category/cool-tool/