January 2017 in “STARS (University of Central Florida)” Steroid hormones can be preserved in ancient hair, revealing insights into past health and fertility.
April 2022 in “Reactions Weekly” 
January 2019 in “Analytical Science and Technology” About 21% of tested hair loss supplements contained illegal synthetic drugs.
33 citations
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January 2008 in “Journal of Molecular Neuroscience” 94 citations
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August 2002 in “Experimental Dermatology” 17α-estradiol boosts aromatase activity in female hair follicles, potentially helping with hair loss.
5 citations
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December 2011 in “Vox Sanguinis” Some blood donors on teratogenic drugs may have unsafe drug levels, suggesting a need for better deferral policies.
3 citations
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September 2016 in “Natural Product Communications” Germacrene analogs, especially 8-Hydroxy germacrene B, are more effective than germacrone at blocking a hormone-related enzyme and could help treat hair loss.
6 citations
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August 1989 in “European journal of pediatrics” Child with rickets improved with a specific vitamin D therapy, but alopecia did not change.
January 2019 in “Springer eBooks” Modified HDL can better deliver drugs and genes, potentially improving treatments and reducing side effects.
December 1989 in “Inpharma (Balgowlah)” Cyproterone helps women with hair loss caused by genetics. More research is needed to confirm the best dose.