37 citations,
April 2002 in “The American Journal of Medicine” St. John's Wort can cause dangerous high blood pressure if taken with certain foods.
33 citations,
March 2009 in “European Journal of Pharmaceutical Sciences” St. John's wort increases finasteride metabolism, reducing its effectiveness; use caution when combining them.
January 2011 in “Reactions Weekly” St. John's Wort may reduce the effectiveness of finasteride by increasing its breakdown in the body.
191 citations,
February 2002 in “Archives of Dermatology” Some herbal therapies may help with skin conditions, but more research is needed to confirm their safety and effectiveness.
23 citations,
April 2017 in “Clinical, Cosmetic and Investigational Dermatology” Dermatologists should screen for and manage psychological issues in patients with skin conditions to improve their quality of life.