There is two types of skin pigmentation caused by an abnormal increase in melanin (pigment cells) due to photo aging (sun exposure). Commonly known as melasma and aged spots.
Melasma are dark spots or blotches on the face, forehead and neck. This is usually caused by sun exposure and for women, associated with hormonal changes during pregnancy.
Sun, age, or liver spots are benign flat brown spots that look like large brown freckles and a condition caused by chronic exposure to the sun rays. It occurs commonly on matured skins that have a tendency to sunburn and tan little or not at all. Our findings indicated that most men in their thirties onward, who travel back from oversea countries where the UV rays, are intense (such as Australia) and without using a sun block will suffer from pigmentation on the cheeks or forehead.