The principle of action of a hyaluronic acid-based healing cream. At first (zoom 1). the hyaluronic acid stimulates the immune reaction to clean the skin. Secondly (zoom 2). the hyaluronic acid stimulates the proliferation of fibroblast cells to reconstitute the dermis and stimulate the angiogenesis of surrounding vessels. Thirdly (zoom 3). the hyaluronic acid stimulates the proliferation of basal cells to reconstitute the epidermis. but also acts as a regulator for the reconstruction of the epidermis. in order to achieve an esthetic scar.