Nightwatch is a natural thirst-quenching energy drink. Nightwatch drink will give you strength and helps you focus. The main ingredient is guayusa. It has been proven scientifically that guayusa produces xanthines such as caffeine. It also contains theobromine and l-theanine, an analogue of glutamic acid found in green tea, it has been shown to reduce physical and mental stress. Guanidine has hypoglycemic properties, lowering blood sugar levels and preventing a quick rise in sugar uptake. Oleanolic and ursolic acid is recognized as anti-inflammatory, anti-viral and anti-carcinogenic agents.