The Barberry bark extract - used in ancient times in folk medicine of the East, which a rich source of active ingredients (eg berbamine, berberine, phenols and polyphenols, protopine). It is used in ailments and disorders of the gastrointestinal tract, affects the correctness of metabolism, enhances diuresis (excretion excess fluids of the body) and blood pressure regulation (lowering). In the sports supplementation it is used in some diuretic supplements, supporting the work of the urinary system