Sunburn is not actually  caused  by  heat  from  the  sun,  but rather the radiation that the sun produces. The sun releases ultraviolet  (UV)  radiation  in  two  different  wavelengths,  and each is  harmful  in  different  ways.  These  wavelengths  are called UVA and  UVB.  UV  radiation  has  shorter  wavelengths than visible light, so our eyes cannot see it but our skin can feel it.

UVA is a longer wavelength having a  spectrum  of  320  to  400 nm. It penetrates deep into  the  skin  and  causes  cellular damage. This exposure often leads to

premature ageing, skin discoloration and wrinkles. UVB is shorter, and damages the surface of the skin.

Thus, protecting the  skin  from  UVA is  vital  &  this  is  achieved by Sunscreens.

ZC THRU MCT stops the UVA photons before they can reach the skin and inflict damage. It contains inorganic actives that scatter and reflect the UVA radiations. ZC Thru MCT block a significant amount of the UVA photons.