27 citations
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February 1991 Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.
37 citations
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June 2011 in “Journal of Cellular Biochemistry” Androgen is important in controlling stem cell differentiation, reducing fat development, and increasing lean mass.
13 citations
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April 2022 in “Frontiers in oncology” Melanoma development can be linked to the breakdown of skin's melanin-producing units.
28 citations
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October 2008 in “Developmental Biology” Smad4 is important for healthy hair follicles because it helps produce a protein needed for hair to stick together and grow.
23 citations
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August 2019 in “Proceedings of the National Academy of Sciences of the United States of America” Pollution exposure speeds up hair damage.