Smith & Nephew Algisite M Calcium Alginate Dressing 3/4" x 12" Rope, Fast Gelling, Soft and Conformable, Highly Absorbent, Box of 10. Smith & Nephew Algisite M Calcium Alginate Dressing forms a soft, integral gel when it comes into contact with wound exudates. Excess wound exudates are absorbed in this process. It utilizes the proven benefits of moist wound healing, resulting in faster healing of even difficult wounds. Made of fast-gelling, high-mannuronic acid fibers. Conforms to wound contours. Low fiber shed construction. High wet and dry strength. Soft and conformable. Highly absorbent and easy to remove.