Only dermis is vascularized. Nutrients reach epidermis by diffusing through the tissue from the blood vessels. Underneath dermis is hypodermis (superficial fascia), also called subcutaneous tissue which is composed of loose connective tissue (mostly areolar and adipose).
A collagen dressing is a type of wound dressing that is made with a form of collagen to aid in the body's healing processes. Collagen is a category of structural proteins that are naturally present in almost every part of the human body and are especially common in connective tissue.
Fibracol Plus Collagen Wound Dressing with Alginate. Fibracol Plus Collagen Wound Dressing with Alginate from HealthyKin.com combines the structural support of collagen with the exudate management of alginate. Fibracol Plus Dressing is made-up of 90% collagen and 10% alginate. The combination of collagen and alginate provides the versatility needed when addressing a variety of wound types and a wide range of exudate levels (from low to high).