UV rays from the sun help our bodies to produce vitamin D, an important vitamin for bone health. The exact same UV rays that cause sunburn are what our bodies need in order to synthesize vitamin D.
Sunscreen can help prevent the negative consequences of sun exposure, but it also hinders our ability to synthesize this essential vitamin. Without the proper tools, it’s hard to know how much sun exposure is enough to prevent sunburn, while maintaining a healthy vitamin D status. This is where Sun Index comes in.