In summer more and more strong UV is becoming the beauty circle of the topic of the main theme. Do you know what, in the absence of sunscreen skin care products in the past, the sun is the nobility of the most important things. During Elizabeth period, the whiter skin, the more noble! At that time the women were more awkward than the “white”, in order to block the sun, they put on a sunscreen mask made of the black velvet. In the mouth of the opening position of a thread through the beads, this mask in addition to look a little bit ugly, but also let the women close their mouths!
In 1928, Dorothy Gray produced the first sunscreen product with chemical composition, the advent of this product make people no longer fear the sun, fell in love with the sunny day. In 1942, during the Second World War, American soldiers were troubled by the sun during the Pacific tropics, when they used a red petrolatum to prevent skin sunburn, which was difficult to clean due to the texture of the Vaseline Sunscreen effect is remarkable but not universal use.
After the war, the US skin care brand Clinique proposed Sun Protection Factor (SPF) this concept, which is now familiar with the SPF value, to calculate how long the sunscreen products to keep the skin from UV sunburn, the more the value High that the stronger the sunscreen ability. From this moment, the struggle with the sun began to be passive to the initiative, this milestone concept has been in use.
Later we have a deeper understanding of the sun in the UV. UV in the sun according to the wavelength is divided into two kinds of UVA and UVB. The sunscreen products on those who do not understand the value and “+” were on behalf of what? First, PA represents the protection of the product for UVA, SPF represents the UVB protection. The two multiply, is the sunscreen really resist the sun’s ability.
In fact, sunscreen is not the higher the better. According to your own needs and sunscreen texture to choose sunscreen is the positive solution. Such as to the beach, you can use SPF30 above products and both the waterproof effect of sunscreen, plus lips sunscreen. If you are the office white collar, you can choose SPF15 ~ 20 products, indoor light properly isolated.
Oily sunscreen products: easy to spread on the surface of the skin extension, suitable for body to choose it!
Emulsion products: light, suitable for use in delicate areas of the face and neck skin.
Powder, spray this form of products: suitable for sweeping the dead ends, those areas where the hands can not rub!