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scientists found that UV damage to the dermis is the most obvious. Ultraviolet EBOHR can be divided into UV-A, UV-B and UV-C, the shorter the wavelength,nike tn pas cher, the greater the harm to the skin,air max pas cher, but the wavelength of the shortest UV-C is absorbed by the ozone layer, can not radiate to the ground; while UV-B and UV-A are able to radiation to the human body. UV-B will cause damage to the skin surface, so that the skin drying red, inflammation, and then become black, the formation of stains, and even cause skin cancer.
Release time: 11:20:13 2010-07-06 browsing: 568 sources: the old traditional Chinese medicine health network
< p > in contact with our sunscreen in the process,air max pas cher, often come into contact with SPF, then we need to know about the meaning of SPF: SPF (sun protection factor is refers to the skin to resist ultraviolet radiation time coefficient,stylo montblanc cruise, prevent namely bask in an index. And MED do you know what that means?
1. Analysis of the skin
,moncler outlet online, refers to the use of protective products, can endure direct sunlight and not the highest limit of injury. The skin more white people MED lower,hogan outlet online, more vulnerable. Asians have about 15-20 minutes of protection (i.e., MED=15-20). SPF by MED on behalf of sunscreen products can protect your time. Now, you should clearly know, SPF value of growth and screen block ultraviolet ability is not proportional, SPF15 skincare can block the 92% of ultraviolet rays, spf50 sunscreen skin care products can only block 95% of ultraviolet rays, SPF value is higher, the sun a long time, suitable for long time in outdoor activities. Selection of body sunscreen, you need to pay attention to its ingredients,ray ban wayfarerb pas cher, quality, so as not to cause adverse reactions of the skin,stylo plume mont blanc soldes, especially sensitive skin, should be more cautious.
two. Sunscreen - silk infiltration, full care
in addition, it is best to choose a nutritious sunscreen products, such as containing vitamin C,new balance baratas, vitamin E or mineral ingredients, so that not only the district
MED Miniaum is the abbreviation of Erythematous Dose
dermis on the surface of the skin, containing melanin cells. The epidermis has the function of protecting the skin from external stimuli. Dermis is located below the epidermis, the epidermis plays a supporting role, it is composed of a network of collagen fibers and elastic fibers, these fibers make the skin elasticity and toughness, the aging of the skin mainly in the dermis.
< p > UV-A will sunburn skin dermis and fibrous tissue damage,hogan sito ufficiale, and it can penetrate the glass, skin in the interior also is affected accordingly. And the appearance of fine lines, aging trend. Ultraviolet light will make the collagen fibers in the dermis decomposition, elastic hard protein accumulation. At the same time, the decomposition of the dermis and repair repeated, due to the decomposition of fast, slow repair and incomplete,golden goose, and finally resulted in permanent wrinkles appear. And UV in addition to causing skin wrinkles, but also make the skin tanning, freckles, skin becomes hard into a leather like,nike tn pas cher, long-term skin exposure will induce skin cancer.
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