Power of Nature Natural Source Calcium & More Guaranteed Wild Non-GMO 100% Raw Wild Rhus Berries Original Ancient Formula Dietary Supplement OregaMax, the original wild oregano formula, supports natural mineral intake and more. This wild oregano grows directly on rock in the Mediterranean mountains, making it a source for natural trace minerals. Unlike commercial oregano, OregaMax is undiluted. It is the most potent wild oregano whole, raw herb available.