Pro Longevity features 100mg of Setria® L-Glutathione Reduced. It has been formulated with over 35 years clinical experience. With the great taste of Natural Berry Flavour Pro Longevity will help give you the added energy you need to make it through your day. Pro Lonevity is GMO and gluten free, Non-irradiated, and fast dissolving. Pro Longevity helps support cardiovascular health and all around wellness.