Caffeine
Green Tea Extract is a concentrated form of polyphenols derived from the unfermented leaves of Camellia sinensis, a shrub native to China and India. It is one of the most researched herbal...
L-Theanine is a unique amino acid found naturally in tea leaves (Camellia sinensis) and certain mushrooms. First isolated from tea in 1949, it has been used in Japan for decades as a food additive...