does camellia sinensis extract have caffeine
One explanation for the difference in the levels of catechins found in this study and others is the type of samples used. In comparative studies, leaves of Camellia sinensis 4 Discussion Table 1. Levels of catechins and caffeine in tea bags, extract, and ready-to-drink green tea.
In fact, any âbuzzâ is more likely to come from additional caffeine extract pumped into them, along with ergogenic herbs such as panax ginseng, which can increase the effects of caffeine. By contrast, the Brazilian soft drink GuaranÃ¡ Antarctica is not marketed as an energy drink and has no warnings on the label.