86 citations,
April 2009 in “Journal of anatomy” Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.
4 citations,
June 2023 in “Journal of developmental biology” The skin systems of jawed vertebrates evolved diverse appendages like hair and scales from a common structure over 420 million years ago.
36 citations,
November 2019 in “Molecular biology and evolution” Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.
17 citations,
August 2012 in “Archives of Pharmacal Research” Acankoreoside J from Acanthopanax koreanum may help promote hair growth.
14 citations,
September 2018 in “International Journal of Molecular Sciences” Mackerel-derived fermented fish oil helps hair grow by activating growth pathways and increasing cell proliferation.