Collagen Dressing McKesson 4 X 4 Inch Square SterileMcKesson Collagen Dressings: Advanced wound care solution Transforms into gel upon contact with exudates for optimal wound healing Indicated for various wound types: pressure ulcers, diabetic ulcers, venous ulcers, and more Gel provides a cool, soothing effect, enhancing patient comfort Made from collagen, sodium alginate, CMC, and EDTA for effective wound management Absorbs wound drainage while maintaining moisture balance for granulation tissue