But the researchers found extra ROS are generated only when the UV filters have penetrated into the skin and, at the same time, sunscreen has not been reapplied to prevent ultraviolet radiation from reaching these filters.
英
美
- 但研究者們發(fā)現，只有當遮光劑滲入皮下的同時(shí)，防曬霜并沒(méi)起到阻擋紫外線(xiàn)進(jìn)入的作用，并產(chǎn)生了額外的ros反應。
