Why does some skin not tan
Question
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Answer ( 1 )
Skin’s ability to tan depends on its melanin production and distribution. Melanin is a pigment produced by melanocytes, specialized cells in the skin. When exposed to UV radiation from the sun, melanocytes produce more melanin, which darkens the skin as a protective response. However, not all skin tans equally due to differences in melanin production and distribution.
Fair skin contains less melanin and is more susceptible to burning than tanning. This skin type lacks the natural protection against UV rays that darker skin tones have. Additionally, certain genetic factors can influence melanin production. People with darker skin tones have more melanin, which provides better protection against UV damage and leads to a deeper tan.
Furthermore, skin that does not tan may be more sensitive to sun exposure or have underlying conditions that affect melanin production. For instance, some medications or medical conditions can interfere with melanin synthesis, leading to reduced tanning ability. It’s important for individuals with such skin types to take extra precautions when exposed to sunlight to prevent sunburn and other UV-related skin damage.