Phytocyst is a food supplement based on the use of dried extract of the American Cranberry, Vaccimium macrocarpom, also known as Cranberry, which is of great nutritional value: fibre, vitamins and minerals. But it is the Proanthocyanidins (PACs-A), the most important active ingredient present in American Cranberries, which is why the extract used in Phytocyst® is titrated at 40% in this substance. In addition to this premium extract, fructo-oligosaccharides, lactic ferments and Vitamin C, which contributes to the normal functioning of the immune system, have been added.