The human skin is the outer covering of the body. It is constituted by multiple layers:
The epidermis is formed by multi-layered sheets whose differentiated structure functions as the front line of the skin's defense against the insults of the outside world.
The main functions of the skin organ is to not let bacteria, harmful substances and UV sun radiation from getting into the body, and to keep everything inside your body in, including moisture.
When a superficial damage occurs to the epidermis or the dermis, we have a wound (or lesion), that may be either acute (heals properly at a predictable and expected rate) or chronic (does not heal in an orderly set of stages and in a predictable amount of time).
Epidermal wounds usually involve only minor damage to the superficial epidermal cells; however, the damage needs to be repaired to avoid compromise the skin’s protective barrier.
The most common acute lesions involving the epidermis are:
Since the dermis contains a network of blood capillaries, a dermal wound may involve extravasation of blood from damaged dermal capillaries, as the result of bruising (excoriation, abrasion) or a small cut.
Although they are superficial wounds, however, they should not be overlooked, but rather treated to promote healing and rapid reconstitution of the skin barrier: the body’s first line of defense.
Hyaluronic acid is a major, natural component of the skin matrix: it stimulates skin repair and regeneration processes, thereby accelerating wound healing.
Hyaluronic acid favours the reconstitution of the skin barrier since HA molecules bind and retain huge amounts of water and provide an open hydrated matrix that facilitates migration of cells involved in tissue repair processes.