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://danddcollectiblers.shop/product-category/notebooks/