In the hot summer, it is a big test for the skin. Hot sun may sunburn the skin and even leave sunburn. Different from whitening after a period of tanning, the sun spots will not automatically fade away, and it is likely to be "permanently retained." If there are large and small spots on the skin of the white , it will definitely hurt the face. In this issue, let's take a look at how to prevent sunburn and let the skin calm down in summer.

Sunburn cause analysis

Why did the sunburn come from? First of all, as the name implies, subcutaneous pigment cells are stimulated by strong sun exposure, and become very active, secreting a large amount of melanin. If the skin tissue fails to be repaired after sunburn, these melanin will be difficult to discharge normally and gradually deposit into the dermis layer, eventually forming sunburn. Of course, this is also related to the metabolism of each person. In general, older people are more likely to have sunburn than younger people.

In addition, the improper use of skin care products and make-up will also accelerate the formation of sun spots. Some skin care products contain too much fragrance, lead, mercury and other components that absorb light. If used for a long time, they will encounter sun exposure and easily produce sunburn. Moreover, some MM for acne, oil control or whitening, excessive exfoliation, the use of products containing salicylic acid, the skin becomes fragile and sensitive, it is difficult to withstand the invasion of ultraviolet rays, may appear rash after sun exposure, sunburn .

The sunburn is initially red oval, and some may be slightly prominent. A few days later, it evolved into irregular patches of varying sizes and shades. Sunburn occurs in the face and neck, back of the hand, upper and lower limbs. Moreover, relatively speaking, the sunburn on the face is more obvious.