I have noticed than in people of color, their upper lip is dark most of the time. Why is this? I would think it would have something to do with melanoma, but I don't know.
I'd really appreciate an answer. Thank you very much.
2007-07-21
11:25:17
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7 answers
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asked by
hey
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Science & Mathematics
➔ Biology
I'm not sure if everyone understands my question.
My friend has a dark upper lip, and in people of darker color, they almost always have darker upper lips. The lighter you are, the lighter the pigmentation. The darker you are, the darker the pigmentation of the upper lip. I'm trying to understand why...
As in what chemical makes it that way...
2007-07-29
08:39:07 ·
update #1