The Sign: Hyperpigmentation Hyperpigmentation, a skin condition in which patches of skin become darker in color, is caused by an excess production of melanin. According to Shamban, a variety of factors spark this excess of melanin, including hormones, medication and, most commonly, UVA rays from the sun, which cause age spots.
Age or liver spots are exclusively caused by years of UV damage from unprotected sun exposure. "You see more of them on the left side of the face due to driving and on the hands because most of us rarely use sunscreens on our hands," Shamban explains.
Luckily, hyperpigmentation can be treated with topical products, but the No. 1 priority is to minimize sun damage in the first place. "Once and for all, lay to rest the myth that 'healthy tanning' exists. Tanning is a sign that the body has been injured," Shamban says. She stresses the importance of daily, thorough and reapplied sun protection not only on the face, but also on the chest and hands. At the end of the day, your No. 1 prescription is "sunscreen, sunscreen and more sunscreen," Shamban says.
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