Proanthocyanidins (PACs) are a class of flavonoids found in fruits and seed that provide antioxidant benefits. A deliciously tart Nature's Way. the ActiFruit with Cran-Max 20 chew offers all-day protection. featuring crucial antioxidants. A whole-cranberry supplement. ActiFruit with Cran-Max 20 chew delivers bioactives throughout the day that help with maintenance of bladder and urinary tract health in addition to its effective enzymatic therapy properties for good digestive health.