The Chemistry of Redheads (IMAGE)
Caption
The thing that sets redheads apart from the crowd is pigmentation. Most humans produce the brown-black eumelanin while redheads have a genetic variant making more reddish pheomelanin. How red hair is produced by redheads' cells might also explain why they have different sensation to pain. Watch the latest Reactions video here: https://youtu.be/Ylt_p2zzONw.
Credit
The American Chemical Society
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