A review on inorganic UV filter zinc oxide against keratinocyte cancer and photoaging

Abstract

Photoprotection has become pivotal in the prevention of keratinocyte cancer and photoaging. Organic ultraviolet (UV) filters such as oxybenzone and octinoxate have become controversial due to their possible impact on the environment and their potential human health risks. As such, inorganic UV filter, zinc oxide (ZnO), has become paramount in discussions about photoprotection. ZnO is used in sunscreens as nanoparticles, which denote a size