Promogran Prisma Matrix Wound Healing Dressing 19.1 Sq In. (Set of 10) A Clinically Proven Combination PROMOGRAN PRISMA™ Matrix is comprised of a sterile, freeze dried composite of 44% oxidized regenerated cellulose (ORC), 55% collagen and 1% silver-ORC. Silver-ORC contains 25% w/w ionically bound silver, a well-known antimicrobial agent. Optimum wound environment Promogran Prisma Matrix Wound Healing Dressing 19.1 Sq In. (Set of 10) PROMOGRAN PRISMA™ Matrix is a topically applied. The product is a sterile, freeze dried, composite of oxidised regenerated cellulose (ORC), collagen and silver-ORC, (a compound of Silver and ORC). In the presence of exudate the PROMOGRAN PRISMA™ Matrix transforms into a soft and conformable, biodegradable gel, this allows contact with all areas of the wound. Saline or Ringer’s solution should be used to hydrate PROMOGRAN PRISMA® Matrix on dry wounds.