夏天到了,防晒成了头等大事。打遮阳伞、穿防晒服、抹防晒霜……人们想尽各种办法全力和太阳展开了“抗争”。不过,你知道防晒的原理究竟是怎样的吗?对防晒我们又有哪些误区?防晒霜到底应该怎样涂抹呢?防晒究竟防什么?紫外线中的UVA和UVB,UVA可以穿透玻璃窗伤害皮肤首先,我们得了解一下阳光的构成。阳光按波长长短分为可见光、红外线和紫外线三大部分。其中会对人体造 Summer is coming and sun protection has become a top priority. Playing umbrellas, wearing sunscreen, sunscreen ... ... people tried every means to fully launch the sun and the “struggle.” However, you know what is the principle of sunscreen? What are the mistakes on the sun? How to apply sunscreen in the end it? What anti-sun UVA and UVB, UVA can penetrate the window to hurt the skin First We have to understand the composition of the sun. Sunshine by wavelength is divided into visible light, infrared and ultraviolet light three parts. Which will be made to the human body