Photoaging is a form of skin aging caused by chronic exposure of human skin to solar UV radiation, which damages the structure and function of the skin. UV radiation, especially ultraviolet B (UVB) from sunlight, is one of the major environmental hazards that can induce skin damage. Over exposure to UV radiation also causes edema, erythema, hyper pigmentation, hyperplasia, inflammation, DNA damage and skin cancer.
Photoaging is characterised by wrinkles, laxity, roughness and irregular pigmentation. Wrinkles that appear preferentially on areas exposed to UVB are an outward sign of cutaneous aging. This condition is reversible through regenerative therapies, which utilizes anti-aging and skin moisturizing strategies.