Examination time: increase concentration and performance
For the students, students and all others, who are in an exhausting exam time, I have a great tip here.
In this time, more is required of you than usual. And since the effect of coffee does not last very long, Guarana is recommended. Guarana helps to increase concentration and performance and is thus the ideal companion in the learning and testing phase. By the way, the guarana only works a bit later, so after about 45 minutes. Coffee works faster, but it does not last that long. Guarana can last up to 6 hours.
Editor's tip: Guarana capsules without additives are available here.
