Human skin colour ranges from darkest brown / black (skin type 5) to the lightest hues (skin type I). This is the result of genetics (biological parents genetic makeup) and sun exposure.
The cells responsible for pigment production are referred to as melanocytes. When they are stimulated as in sun exposure, damaged or unhealthy, they can produce an excess of melanin leading to hyperpigmentation.
In cases where the melanocytes are no longer active nor capable of melanin production, a condition called hypopigmentation ensues. Hyperpigmentation can take the form of small discrete freckles to the larger solar lentigo to large areas of patchy pigmentation.
If you have concerns regarding pigmentation, call the clinic @ 67329989 to schedule a non-obligatory consultation.