Signs of Photoaging

Photoaging is premature aging of the skin caused by repeated exposure to ultraviolet radiation (UV) primarily from the sun, but also from artificial UV sources. "Photo" is derived the Greek word "phos" which means "light". So, aging of the skin caused by light. Photoaging is different from chronologic aging, as the damaging effects of UV rays from the sun (or artificial tanning sources) alter the normal structures of the skin.