Photoaging refers to skin damage caused by prolonged sun exposure, specifically UVA and UVB rays, and can lead to skin cancers. Most of the skin changes that occur as we age are accelerated by sun exposure.

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Skin is composed of three layers: the epidermis, the dermis, and subcutaneous tissue. The dermis contains proteins, including collagen, elastin, and other important fibers, that affect the skin's strength and elasticity and are responsible for skin's smooth, youthful appearance. UV radiation damages these important proteins, leading to photoaging skin damage.

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Photoaging looks like premature aging. Exposure to UV light can cause wrinkles, sagging skin, and an uneven skin tone.

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Signs and Symptoms

Photoaging symptoms and signs can include:

• Wrinkles

• Drooping skin (inelasticity)

• Dark spots ("age spots")

• Broken blood vessels (telangiectasias)

• A yellowish tint to the skin

• Leathery texture to the skin

• Mottled pigmentation

• Easy bruising

• Favre-Racouchot syndrome (sun-related milia, breakouts, and cysts)