Dark spots, or hyperpigmentation, are caused by an excess production of melanin. Melanin, the pigment that gives the skin its colour, is produced by skin cells called melanocytes. When the skin produces more melanin than usual, the excess pigment gives the affected area a darker look than the skin around it.
WHAT CAUSES HYPERPIGMENTATION?
There are many different reasons for hyperpigmentation and dark spots on the face. One of the main causes is the sun’s UV rays. Other causes include inflammation of the skin, acne and breakouts (skin injury), hormonal changes and menopause. Daily sun exposure will cause further darkening of pigmentation.