April 2012 in “Journal of IMAB” Men with male pattern baldness don't necessarily have high levels of Dehydroepyandrosterone-sulfate, and there's no link between its levels and the severity of hair loss.
January 2012 in “Vitamins & trace elements” Smoking and drinking can lower vitamin levels and potentially trigger early hair loss, but overall vitamin levels don't seem to affect hair loss duration.
October 2004 in “DOAJ (DOAJ: Directory of Open Access Journals)” Men with hair loss don't necessarily have higher levels of the hormone DHEA-S, but this hormone tends to decrease with age.
November 1986 in “PubMed” Women with androgenetic alopecia have lower SHBG levels.
67 citations
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April 2014 in “Biochemical Journal” Ceramide synthase 4 deficiency in mice leads to hair loss due to altered sebum lipids.
33 citations
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June 2007 in “International Journal of Pharmaceutics” The conclusion is that measuring how drugs partition into artificial sebum is important for predicting their delivery into hair and sebaceous follicles, and it provides better information than traditional methods.
29 citations
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May 2007 in “International journal of pharmaceutics” Different compounds move through artificial sebum at different rates, which can help choose the best ones for targeting hair follicles.
25 citations
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November 2015 in “Journal of Dermatological Science” Sebum helps protect human skin from microbes.
22 citations
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August 2013 in “Experimental Dermatology” EGFR hyperactivation increases sebaceous gland size and sebum production in mice.
17 citations
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August 2007 in “Bioorganic & Medicinal Chemistry Letters” A compound made by Pfizer can potentially stimulate hair growth and reduce oil production, making it a good candidate for topical use.