Researchers from Boston University in the US developed Solar D, through a process in which the ingredients of a sunscreen are altered in such a way that it does not impact its sun protection factor (SPF), but does allow the body to produce vitamin D.

Sun exposure has been the major source of vitamin D for most children and adults worldwide. However, the increased risk of skin cancer led to the widespread usage of sunscreens.

As a result, an SPF of 30 when properly applied reduces the capacity of the skin to produce vitamin D by almost 98 percent, the researchers said.

There are several chemical compounds that are typically used in a sunscreen that efficiently absorbed varying wavelengths of UVB radiation, the researchers explained in the study published in the journal PLOS ONE.


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