November 2025 in “Journal of Investigative Dermatology” Tanning ability is linked to specific DNA changes in skin genes.
152 citations
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December 2003 in “Micron” As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.
17 citations
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February 2011 in “International Journal of Cosmetic Science” Grey hair is wilder, drier, and less manageable than pigmented hair.
15 citations
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December 2016 in “Obstetrics & Gynecology” Most skin changes during pregnancy are harmless and moles don't significantly change, but many women experience pigmentation changes due to hormones and sun exposure.
96 citations
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January 1997 in “Clinics in Dermatology” Pregnancy can cause skin pigmentation, stretch marks, and changes in hair, nails, and sweat glands, with most resolving after birth.