Xtrasorb Hydrogel Colloidal Sheet Dressing, Non-Adhesive, 4.5 x 4.5, 10/boxDerma Sciences Xtrasorb Hydrogel Colloidal Sheet is a super absorbent polymer based hybrid of a hydrogel and hydrocolloid. The addition of Sodium Carboxymethyl Cellulose (a key ingredient in traditional hydrocolloids and the base component in hydrofiber), along with our patented SAP gel formulation, to an equal amount of our water glycerin hydrogel base helps this unique dressing offer hydration to non exuding and lightly exuding wounds, while also