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Freckles are not a skin disorder, but people with freckles generally have a lower concentration of photo-protective melanin, and are therefore more susceptible to the harmful effects of UV radiation. It is suggested that people whose skin tends to freckle should avoid overexposure to sun and use sunscreen. [3] [4]
Liver spots (also known as age spot, solar lentigo, [1] "lentigo senilis", [1]: 686 "old age spot", [2] "senile freckle") [2] are blemishes on the skin associated with aging [3] and exposure to ultraviolet radiation from the sun. [4] They range in color from light brown [5] to red or black and are located in areas most often exposed to the sun ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 March 2025. "Skin pigmentation" redirects here. For animal skin pigmentation, see Biological pigment. Extended Coloured family from South Africa showing some spectrum of human skin coloration Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among ...
Ever spot something on your skin and wonder um, how long has that been there? Before you fall down the rabbit hole of Google, let’s start with step one: identifying what the spot in question ...
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The MC1R variant gene that gives people red hair generally results in skin that is difficult or impossible to tan. Because of the natural tanning reaction to the sun's ultraviolet light and high amounts of pheomelanin in the skin, freckles are a common, but not universal, feature of red-haired people.
The mom of two, from Georgia, simply chalked them up to being in the sun. "Honestly, I thought they were sun spots. I thought they were going to say, 'just your skin aging.
Melanocytes from light skin cells cocultured with keratinocytes give rise to a distribution pattern characteristic of light skin. [93] Freckles usually only occur in people with very lightly pigmented skin. They vary from very dark to brown in colour and develop a random pattern on the skin of the individual. [94]