33 citations,
November 2008 in “European Journal of Pharmaceutical Sciences” St. John's wort increases finasteride metabolism, reducing its effectiveness; use caution when combining them.
31 citations,
October 2005 in “British Journal of Dermatology” Hair loss in women not always linked to increased oil production; other factors may be involved.
10 citations,
August 2014 in “Skin research and technology” Sleep, testosterone levels, and a specific enzyme activity affect skin oil production in women.
4 citations,
January 1991 in “Journal of dermatological treatment” Goserelin and oestradiol treatment slightly improved hairiness but did not significantly change sebum production or hair characteristics in mildly hirsute women.
2 citations,
July 2013 in “Journal of Animal Physiology and Animal Nutrition” Shorthaired and hairless cat breeds excrete more felinine than longhaired breeds.