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Activin A increases inner ear hair cell development, while follistatin decreases it.
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January 2017 in “Stem cells international” Adding hyaluronic acid helps create larger artificial hair follicles in the lab.
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March 2001 in “Clinics in dermatology” Bleaching damages hair, making it rougher and weaker.
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June 2011 in “Journal of applied polymer science” L-phenylalanine and hydrolyzed eggwhite protein deeply penetrate human hair.
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September 2022 in “Journal of Investigative Dermatology” Careful selection of mice by genetics and age, and controlled housing conditions improve the reliability of hair regrowth in wound healing tests.
November 2024 in “Biophysical Chemistry” Hair structure changes immediately during perm treatment, with initial damage partially restored later.
October 2025 in “Journal of Investigative Dermatology” Hair follicle dermal stem cells help control hair growth timing by regulating signals at the hair germ–dermal papilla interface.
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June 2015 in “Journal of Tissue Engineering and Regenerative Medicine” Wnt1a helps keep cells that can grow hair effective for potential hair loss treatments.
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December 2024 in “Methods in molecular biology” Hair proteins are complex and provide valuable genetic and biological information.
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January 2017 in “RSC Advances” Keratin peptides can change hair shape gently without harsh chemicals.