What causes human hair to go gray?

What chemical causes hair to go Grey?

  • Hormones, prostaglandins, drugs, what has potential to cause it???

  • Answer:

    As you age the body decreases the rate of making melanin which adds the color to hair. So technically hair is grey all along except the melanin color covers it up.

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Other answers

The follicle does the equivalent of turning itself off. Melanin is no longer produced, no colour in the hair any more! Simples. Dad's turned off years ago. We [women] tend to have ours working for a fair bit longer. No pun intended.

Maia

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