Pro Ven Probiotics 50 Plus A-Z Multivitamin with Pro Ven Probiotic has been developed to supply tailored nutritional support as we age past 50 years. During this time, it is often necessary to increase intake of vitamins & some minerals in order to maintain optimum health. That is why Pro Ven 50 Plus contains most of the 13 essential vitamins at above the RDA level. Comprehensive vitamins & trace mineral formulation.2.5 billion Lab 4 probiotics. Age protective nutrients Lutein, Zeanxanthin & Ginkgo Biloba. In addition, the aging process is often described as a process of loss of immune balance together with an increased level of free radicals. Pro Ven 50 Plus contains the extensively studied Lab 4 probiotic bacteria to help support immune function as well as an array of antioxidants to help neutralise the negative effects of free radicals on the cellular ageing process.