防晒是夏日护肤的主题,但是因为曾有防晒霜致癌的传闻,不少求美者认为,防晒霜毕竟是化妆品,尽量少用更安全。到底如何使用才科学呢?一、防晒霜前先隔离。在涂抹防晒霜前应先涂一层保湿霜,尽量不要让防晒霜直接与皮肤接触,这样既可以给皮肤补充一些水分,也能减少对皮肤的刺激。二、涂抹足量才有效。防晒霜在皮肤上标准的涂抹量是每平方厘米2毫克,足 Sunscreen is the theme of summer skin care, but because there have been rumors of carcinogenic sunblock, many beauty that the sun is, after all, cosmetics, as little as possible to use more secure. In the end how to use science? First, sunscreen before isolation. Apply a layer of moisturizing cream before applying sunscreen, try not to let sunscreen directly contact with the skin, so that both to the skin to add some water, but also reduce the stimulation of the skin. Second, smear enough to be effective. The standard amount of sunblock applied to the skin is 2 milligrams per square centimeter