It protects skin not only by sun blocking function of sun screen agents to scatter, diffuse and absorb UV-A and B but also enhance the durability of screening effect by water proof efficiency.
Application feeling is lifht and soft not to feel any alien substance and the waterproof efficency lasts long against sweating and swimming in water pool or seawater.
The sun emits a variety of UV radiation. UV rays with short-length waves under 290nm, such as VUV and UV-C, which are mostly absorbed by the gas and ozone layers of the atmosphere, do not therefore directly impact the human boy. Those with wave length between 290 and 400 nm (UV-B and UV-A), however, do reach the earth's surface and damage our skin in many ways.