What is the effect of UVB radiation on the skin?

UVB radiation primarily affects the outer layers of the skin and is known for its ability to cause sunburn. This is because UVB rays are responsible for damaging the DNA in skin cells, leading to inflammatory responses such as redness and pain associated with burning. While UVB exposure can have some positive effects, such as aiding the production of vitamin D, it is best known for its immediate damaging effects, which is why it is correct to identify that it can cause burning.

In contrast, while UV radiation can contribute to skin aging, primarily through UVA rays, the direct link to burning is distinctly associated with UVB. UVB is not harmless; it has well-documented risks associated with overexposure, including increased risks for skin cancer. Furthermore, UVB does not promote healing; rather, excessive exposure can lead to skin damage and delayed healing processes.