Do you have patchy, mottled pigmentation on your face? You’re not alone. Many people have melasma, which is the presence of brown to gray patches on areas of skin exposed to the sun. It’s common everywhere from the forehead to cheeks, to nose and chin, and even the upper lip. According to the American Academy of Dermatology, a whopping 90 percent of sufferers are women. (Because we don’t have enough to deal with already!)
What causes melasma?
Sun exposure, pregnancy and hormones from birth control pills are the biggest triggers of melasma. In fact, it’s so common among expecting mothers that it’s even nicknamed “the mask of pregnancy.” For some, the melasma resolves itself once pregnancy is over, while for others, it decides to stick around.
Ultraviolet (UV) light from the sun is thought to stimulate melanocytes (color-making skin cells) to produce too much color, resulting in the blotches. Since skin of color naturally has more melanocytes, deeper tones experience higher incidence rates of melasma.
Exposure to sun rays is why so many people have worsening symptoms during the summer, or have the melasma return again and again in hot temperatures when it has previously faded away. I also feel strongly that even indoor lighting can aggravate melasma in those who are susceptible. youbeauty.com