Pigmentation & Uneven Skin Tone
Those darker patches on the skin that don’t seem to fade officially are called pigmentation or hyperpigmentation.
An uneven skin tone is most commonly caused by UV rays from the sun, however, age, hormonal changes, chemicals, and pollutants can also cause this condition. Additionally, the body itself too can cause uneven skin tones and blotchy skin by attacking the cells that produce melanin.
Sun damage, or pigmentation, occurs when patches of skin turn darker in colour causing an uneven skin tone. Hyperpigmentation is a concentrated and often localised increase in your skins melanin (colour), often caused by sun exposure. It is a common and usually a harmless condition, in which patches of the skin become darker than the surrounding skin.
What is pigmentation?
Pigmentation is essentially the colouration in the skin; it’s determined by the amount of melanin (the colour) which the body produces from its melanocyte cells. The amount of melanin produced depends primarily on skin type and exposure to sunlight. Fairer skin is the result of a lower melanin production, while darker tones are the result of higher production. Other than colouring the skin (plus hair and eyes), melanin provides protection by absorbing UVB radiation from the sun. A sun tan (Melanogenesis) is the result of higher melanin production; the body’s own defences against damaging UVB.
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