For women, the skin to ensure a healthy summer skin care is one of the most important things. Sinister sun, ultraviolet light is against this all-pervasive skin, in the end to what they can do to keep skin healthy? How to choose the right sunscreen? Face the sun, is not so chaotic disarray? Oh do not worry, let us look at the expert how to say.
Some “SPF values higher, the effect of anti-ultraviolet, the better” concept, allows manufacturers and consumers a one-sided pursuit of high-SPF products, some of the SPF value of Japanese products even more than in 200. However, it means that high SPF products in the large-scale use of a UV absorber and scattering agents, and the content is too high and the scattering of the absorbent agent, will bring about skin irritation, allergy, such as unsafe sex and use of the discomfort flu. SPF only indicates that a sunscreen product on the ability of UVB protection, does not mean that for UVA sun protection.
Studies show that UVA is the main reason for aging and wrinkles
Research in recent years has made it clear, UVA is the main reasons for the destruction of dermal collagen fibers, causing skin aging, producing wrinkles , but only SPF products are not indicators of anti-UVA, even though the higher the SPF value, we can not provide security.
So many countries, such as the United States to provide cosmetic sunscreen SPF values up to 30, products of Australia and New Zealand up to 15.
Expert ideas, scientific strategy for sun precaution
Therefore, the young women to choose sunscreen agents, the main consideration should be caused by ultraviolet light to stimulate pigmentation, sun protection products that should be mainly to prevent UVB.
As for the middle-aged and elderly, the main in order to prevent wrinkles and pigmentation produced. In attention to the prevention of UV-B on the basis of the long-wave ultraviolet light should strike a balance between prevention.
Different regions according to different SPF values election
Accessible in light indoor workplaces, and should be selected SPF10/PA + / PFA2 ~ 4 products.
Outdoor work, at noon in the outdoor activities, should be selected SPF20/PA + + / PFA4 ~ 8 products.
Often under the hot sun or sea, shall be selected SPF30/PA + + + / PFA> 8 products.
