Only North American Herb & Spice goes to this degree of handpicking wild grapes and then extracting them raw. Plus, Resvera-Flo is increased in potency with muscadine grape skin extract, your preferred wild & raw resveratrol supplement for supporting cardiovascular health. This is the world’s only truly natural-source resveratrol supplement, also containing wild-source resveratrol, available. Take a teaspoonful daily for your optimal health.