Coconut oil can damage hair by clogging pores, causing frizz, and disrupting moisture balance.
October 2022 in “Biomedicines” Finasteride in male rats causes liver and metabolic issues in their offspring.
195 citations
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April 2005 in “Journal of biological chemistry/The Journal of biological chemistry” The ZIP7 gene helps control zinc levels in cells by moving zinc from the Golgi apparatus to the cytoplasm.
November 2025 in “Scientific Reports” COVID-19 may cause hair loss by affecting hair follicles.
147 citations
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September 2006 in “Developmental Cell” Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.