Source Naturals Caffeine+ L-Theanine, 120 Tabs (Pack of 1)

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. caffeine and L-theanine have a synergistic effect on attention & accuracy, & together supp