Swanson Superior Herbs is proud to partner with Valensa to bring you the highest-quality New Zealand Black Currant Extract for truly cutting-edge supplementation. According to Dr. Rudi Moerk of Valensa, Intl. and research scientists around the world, we have been overlooking the superior black currant while embracing the legend of bilberry for natural eye health support. Black currant supplies antioxidants and anthocyanins with vision-supporting potential, not to mention phenolics, vitamin C, zinc and other minerals.