Do you know that you love beauty? In addition to the age factor of skin aging, the most important thing is UV damage, UV rays can tan or even sunburn the skin, which eventually leads to aging and skin aging. So to keep your skin youthful, sun protection is essential. UVB has medium-wave UVB (tanning sunburn skin) and long-wave UVB UVA (so that the skin aging), the sunscreen products on the market are generally marked for these two types of UV values: SPF value is the value of the sun protection effect, PA value refers to the indicators of anti-skin aging. The higher the sunscreen value, the greater the burden on the skin and the more likely to cause skin allergies. So the choice of sunscreen, not the greater the sun protection factor the better. Summer outdoor activities generally choose SPF 30, PA + + can be, preferably with a refreshing texture of the spray, dew agent products. Is it safe to just apply sunscreen? Wrong!!! Sunscreen can only play a role in reflecting UV rays or absorbing a small amount of UV rays, outdoor activities it is best to choose appliances sunscreen at the same time, you can play umbrellas, sun hats and glasses in summer, you can wear a mask protection in winter, along with sunscreen products. If the skin is severely sunburned or even red, you should immediately go to a cosmetic hospital and use medicines or skin care products with epidermal repair to promote rapid healing of the injured skin and avoid hyperpigmentation. If there is already obvious hyperpigmentation or uneven pigmentation, you need to go to a professional hospital to improve it with fruit acid skin revitalization and other methods.