Emily Kirkpatrick is a former associate style news editor at PEOPLE. She left PEOPLE in 2017. Vesnaandjic / Getty Images Vitiligo is a chronic disorder, often due to genetics or a change in the immune ...
There are two types of skin pigmentation disorders: hyperpigmentation, in which the skin produces too much melanin, and hypopigmentation, in which the skin produces too little melanin. Skin ...