Causes of pigmentation Hyper pigmentation or pigmentation is caused by an increase in the number of melanin pigment. Melanin is the natural coloring pigment that gives our skin, hair and eyes their respective colors. There are various number of factors can trigger an increase in the number of melanin production in the skin, but one of the main reasons are exposure to sunlight for a longer period of time, hormonal imbalance or influence, age and skin damages etc causes hyper pigmentation. It leads to flat, darkened patches on the skin that can be in various size in size and different colors. This appears as darkened patches or spots on the skin and it can be uneven too. Causes of Tan The sun rays contain two different types of ultraviolet radiation which reaches your skin-UVA and UVB. UVB radiation burns the epidermis (the upper layer of the skin), it causes sunburns. UVA radiation makes your skin tan. This causes the production of melanin. Melanin is the brown colo...
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