Dermarite Industries Dermacol Collagen Matrix Wound Dressing, 2"x2" For the management of full and partial thickness wounds, including: Pressure ulcers, diabetic ulcers, mixed vascular ulcers, venous ulcers, donor and graft sites, abrasions, traumatic wounds healing by secondary intention, dehisced surgical wounds, first and second degree burns. Dual MMP inhibition to help initiate healing in stalled/chronic wounds and encourage granulation. Collagen matrix attracts MMPs, protecting granulation tissue.