Harpagophytum helps to maintain una buona Joint health by contributing to joint mobility and flexibility. Organic Harpagophytum Arkogélules, taken every day: Harpagophytum is una A plant native to southern Africa that grows naturally, particularly in the Kalahari Desert (Namibia, Botswana). Its name "Devil's Claw" comes from its fruits, which bear sharp, curved hooks and are caught in the fleece and hooves of antelopes. Devil's Claw is also used to maintain joint flexibility.