Age spots, also referred to as liver spots, are dark spots on the skin that occur on sun-exposed areas. Age spots result from an excess production of skin pigment called melanin. Skin aging and exposure to ultraviolet rays are contributing factors to age spot production, which most commonly occur from the age of 40 onwards.What does sun damage look like? No matter how diligent you are about sun safety, as you age you’ll inevitably start noticing the damage sun can do to your skin. Burns and frequent tanning can lead to uneven skin tone and marks on your face that don’t seem to fade. Sun damage might show up in the form of age spots ranging from light brown to red or black, freckles, and melasma, a discoloration caused by the body overproducing melanin after being directly exposed to sunlight.