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When I was young I was blond (blond hair brown eyebrows) but as I grew older my hair colour changed to brown and my facial hair grew brown. Why is that?
Dr. Zakia Dimassi, Pediatrics - Hair color comes from the pigmentation of hair follicles. There are two types of melanin in human hair: eumelanin and pheomelanin. In general, the more eumelanin you have, the darker the color of the ... Read More
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I think I may have Vitiligo. I saw two doctors when I noticed white patches on my face and only one said I have it. What tests should be done to confirm that I have Vitiligo?
Dr. Salim Saab, Otolaryngology (Ent) - Vitiligo is an auto immune disease charecterized by the absence of pigment in the skin called melanin. The only test for this disease is the presence of antibody anti melanin in the skin.
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