Source Naturals Caffeine+ L-Theanine, 240 Tabs (Pack of 1)

Source Naturals Caffeine + L-Theanine delivers the energy benefits of caffeine with the calming benefits of L-theanine, to help you start the day focused and productive. In contrast to the nervousness that can come from consuming excess caffeine by itself, these two ingredients work together to provide calm, focused energy. Research has shown that caffeine and L-theanine have a synergistic effect