What is Hyperpigmentation and Melasma?
Pigmentation is the coloring of a person's skin. For various reasons, a person's skin may change color, becoming darker (hyperpigmentation) or lighter (hypopigmentation). Hyperpigmentation in skin is caused by an increase in melanin, the substance in the body that is responsible for color (pigment) and is produced by melanocytes at the lower layer of the epidermis.
Melanin absorbs the sun’s harmful ultraviolet rays in order to protect the skin from overexposure; but, in doing so may cause freckles, age spots (liver spots), or other darkened skin patches to become even more pronounced. People with darker Asian, Mediterranean or African skin tones are also more prone to hyperpigmentation, especially if they have excess sun exposure.
CAUSES OF HYPERPIGMENTATION INCLUDE: