What is a significant effect of UV radiation on skin?

UV radiation has a significant effect on the skin by accelerating the process of skin aging, commonly referred to as photoaging. This occurs due to the damage UV rays inflict on the skin layers, particularly the dermis. Chronic exposure to UV radiation leads to the breakdown of collagen and elastin fibers, which are crucial for maintaining skin structure and elasticity. Consequently, this results in the formation of wrinkles, loss of skin firmness, and texture changes.

Moreover, UV radiation can also contribute to other skin issues, such as increased pigmentation, the development of sunspots, and a rougher skin texture. Unlike the other options, which suggest positive outcomes like increased moisture retention, collagen production, or improved barrier function—none of which align with the well-documented negative consequences of prolonged UV exposure—accelerated skin aging directly reflects the established understanding of UV radiation’s detrimental impact on skin health.