① When there are serious heart disease, tuberculosis, fever, hemorrhagic quality and other diseases, melanin is forbidden;

② In case of nausea, dizziness, fever and other reactions during irradiation, stop immediately and rest in a cool place; Appropriate reduction should be made during subsequent irradiation;

③ When fatigue, insomnia and loss of appetite occur after tanning, it may be the accumulation of sunlight. You should rest for a few days and continue to irradiate after the symptoms disappear;

④ Before each blacking, it's best to take a short air bath first, and then wipe yourself with cold water after blacking.

⑤ When tanning, you must pay attention to protect your skin from sunburn, or choose natural and safe cosmetics, not too greasy, otherwise it will put too much pressure on your skin.

Is melanin harmful to your body?
Melatonin is a method of using sunlight to exercise or prevent chronic diseases. It mainly allows sunlight to irradiate human skin, causing a series of physical and chemical reactions, so as to achieve the purpose of fitness and treatment. Excessive ultraviolet radiation has been proved by medicine that it may cause skin cancer. After filtering out harmful rays, artificial ultraviolet radiation is much healthier than direct solar ultraviolet radiation. If it is a formal beauty agency, it is generally less harmful to the body