ZRadical™, featuring 50 mg of pure fucoidan, is an advanced biotherapeutic drink. Combining the best of nature and science, this powerful blend is formulated to support immune, cardiovascular, neurological, and joint health.* All in a great-tasting drink that the whole family will enjoy. Fucoidan is a sulfated polysaccharide and has long been recognized as a key to long and healthy lives. It has been used for centuries for its health-giving properties in Japan, South America, and Europe. Our fucoidan comes from marine vegetables harvested using an environmentally responsible method from the extreme northern and southern hemispheres, where the ocean is the coldest and purest in the world