Helistat Absorbable Collagen is a Class 3 Hemostatic Sponge is a soft, white, pliable, non-friable absorbent sponge. Because of its non-friable coherent sponge structure, the application of Helistat hemostatic sponge to the site where hemostasis is desired is easily controlled. Unwanted dispersal over the operative site is not encountered.