Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. Made of fast-gelling, high mannuronic acid fibers from calcium alginate, which is extracted and purified from a natural, renewable source - seaweed * When exudate comes into contact with AlgiSite M, it forms a hydrophilic gel that remains in intimate contact with the wound surface, helping to create and maintain a moist wound environment *