Suntan is formed under impact on skin of ultraviolet rays only of soft range. Their sources is the sun (natural suntan) and sunbed (artificial suntan).
Process of emergence on skin of suntan is caused by the fact that under the influence of ultraviolet there is production of melanin which is suntan source. Color of suntan depends on features of pigment of melanin. It can be golden, bronze, chocolate, reddish. At insufficient production of melanin, skin practically does not change.
The sun is not only means for obtaining suntan, but also source of good mood. Under the influence of sunshine the blood circulation of the person is normalized, bone tissues (bones, teeth) become stronger, the hormonal system becomes active.
But excessive stay in the sun causes early aging of skin, emergence of pigmental spots and freckles, weakens the immune system, increases predisposition to oncological diseases of skin (melanoma). Different types of skin differently react to ultraviolet rays. For example, owners of swarty skin quickly enough get beautiful and equal suntan, burn happens very seldom (at intensive radiation). And here people with light type of skin (fair-haired, red-haired) at short-term stay under beams can get solar burn with ease. As a rule, such people have skin reddening which in the near future disappears, and skin remains pale. For decrease in sensitivity of skin it is recommended to use before reception of solar bathtubs products with the high content of vitamin C and RR (blackcurrant, cabbage, lemon, apples, green onions). It is not necessary to use before campaign on the beach or sunbed decorative cosmetics as the substances which are its part have negative effect on condition of skin and lead to formation of pigmental spots. Use of perfumery means as essential oils under the influence of beams cause inflammatory processes on skin is also categorically contraindicated.