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What is skin pigmentation?

Skin pigmentation is the natural color of a person's skin, which is primarily determined by the amount and type of melanin produced by the skin cells. Melanin is a pigment that is produced by specialized skin cells called melanocytes, which are located in the epidermis, or outer layer of the skin. Melanin helps protect the skin from harmful ultraviolet (UV) radiation from the sun, which can cause skin damage and increase the risk of skin cancer.

There are two main types of melanin: eumelanin and pheomelanin. Eumelanin is a brown-black pigment that is more abundant in people with darker skin tones. Pheomelanin is a reddish-yellow pigment that is more abundant in people with lighter skin tones. The ratio of these two types of melanin in the skin determines a person's skin color, as well as other physical traits like hair and eye color.

Skin pigmentation can be influenced by a variety of factors, including genetics, sun exposure, hormonal changes, and certain medical conditions or medications. For example, people with fair skin are more susceptible to sunburn and skin damage from UV radiation, which can lead to changes in skin pigmentation over time. Hormonal changes during pregnancy can also cause temporary changes in skin pigmentation, such as the appearance of "pregnancy mask" on the face. Changes in skin pigmentation can also be a sign of certain medical conditions or skin disorders, such as vitiligo, which causes loss of melanin in patches on the skin, or melasma, which causes brown patches on the face.

Overall, maintaining healthy skin pigmentation is important for protecting the skin from damage and maintaining a youthful, healthy appearance. This can include practicing sun safety, using skin care products that are appropriate for your skin type.

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