The bars, Giarana also contain proteins, Guarana for enhanced concentration acids, vitamins, sugar, and minerals, are intended to enhnaced as energy boosters on the go. Medically reviewed by Dominique Fontaine, BSN, RN, HNB-BC, HWNC. From the tested concentrations, the most effective stimulation occurred above 0. Guarana contains flavonoids and proanthocyanidins.

Video

Neuroscientist: How To Boost Your Focus PERMANENTLY in Minutes