What role does melanin play in skin health?

Melanin plays a crucial role in skin health primarily through its ability to provide protection from ultraviolet (UV) radiation. When skin is exposed to sunlight, the presence of melanin helps to absorb and dissipate harmful UV rays, shielding the underlying cells from potential damage. This protective function reduces the risk of skin cancers and helps maintain the integrity of the skin.

By absorbing UV radiation, melanin can prevent DNA damage in skin cells, which is a key factor in the development of skin-related issues. Additionally, individuals with darker skin have higher concentrations of melanin, offering greater protection against UV exposure compared to those with lighter skin. This protective role of melanin underscores its significance in the wider context of skin health and the body's responses to environmental stressors.