One of the most obvious effects of sun damage is hyperpigmentation. Hyperpigmentation refers to any skin condition that is a result of having more than the normal amount of melanin (the pigment of the skin).In simple terms, hyperpigmentation literally means “over-pigmented”. The melanocytes, which are the cells that produce the melanin, are over stimulated by sun exposure, but can also be stimulated by hormones, exposure to some chemicals, injuries to the skin, and many forms of infl...