November 2022 in “Research Square (Research Square)” Topical minoxidil 5% is better for treating female pattern hair loss than topical sildenafil 1%.
June 2022 in “IP Indian journal of clinical and experimental dermatology” Both treatments were equally effective in promoting hair growth.
January 2022 in “Turk Dermatoloji Dergisi” Topical procyanidin B2 significantly increases hair count and is a safe treatment for male pattern baldness.
December 2021 in “International Journal of Research in Dermatology” Female pattern hair loss in Saudi women is linked to low iron and vitamin D levels.
September 2016 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Once-daily 5% minoxidil foam increases hair regrowth and density in women with hair loss, but not as effectively as twice-daily 2% minoxidil solution, though it's safer and more convenient.
February 2014 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” 
January 2014 in “Anales Médicos de la Asociación Médica del Centro Médico ABC” The combination of oral finasteride and dutasteride with topical minoxidil effectively promotes new hair growth in most people, with minimal side effects.
January 2008 in “Journal of Clinical Dermatology” January 2002 in “Journal of Clinical Dermatology” Finasteride effectively treats hair loss in Chinese men with minimal side effects.