how skin pigmentation forms
The different types of pigmentation problems. From the age of 30, a number of women develop pigmentation irregularities on their skin. This can be the result of different problems: Lentigo, is also called age spots if it is mainly due to the intrinsic ageing of the skin, or solar lentigo if it is caused by regular and considerable sun exposure.
Skin - abnormally dark or light. Skin that has turned darker or lighter than normal is usually not a sign of a serious medical condition. Normal skin contains cells called melanocytes. These cells produce melanin, the substance that gives skin its color. Skin with too much melanin is called hyperpigmented skin. Skin with too little melanin is called hypopigmented skin. Pale skin areas are due to too little melanin or underactive melanocytes.