PhytoCyst by Drasanvi is a dietary supplement based on a dried cranberry extract sourced from Vaccinium macrocarpon, commonly known as cranberry. Cranberries are appreciated for their overall nutrition—fiber, vitamins, and minerals—but the key active component is the proanthocyanidins (PACs‑A). To ensure a robust amount of this compound, the Phytocyst extract is standardized to 40% PACs‑A. Alongside this premium extract, the formula includes fructooligosaccharides, lactic cultures, and vitamin C, which support the normal function of the immune system.