The top layer of skin, the epidermis, normally consists of basal proliferating cells and 5-6 layers of epidermal cells, which are 'moving' to the skin surface, are gradually losing their 'cell shape' and reborn as keratin keratinized plate, then peel and disconnected from the skin surface. Basal layer of the epidermis plays another important role. It defines our tan. It is the pigment melanin, which depends on the number and color. Than produce more melanin, the more intense and darker color of skin Pigment cells on the skin surface evenly distributed. In the area of the face on each square centimeter has twice as many melanophores than in inside of the arm.
Therefore, a person tans much faster and stronger. Below is the dermis, which contains muscles, small blood vessels supplying blood, the basal cell layer of the epidermis, and a framework of collagen fibers and elastin. The main content of the dermis – the gel substance, the main component of which – hyaluronic acid. She fills the space between the fiber bundles of connective tissue cells and blood vessels. Aging skin depends on several factors. Development of the epidermal cells at the age of 25-35 basal cells slow the rate of division, because of this, the number of layers of dead cells increases. This is due to a gradual decrease the concentration of various hormones in the blood. However, the intensity of this process can be sustained with exfoliation with fruit acids, or microdermabrasion. This removes the upper layers of keratinized cells, with exposing the lower lying, younger layers.