December 2023 in “Trials” The trial is testing if a helmet that uses light can prevent hair loss during chemotherapy.
May 2023 in “General and comparative endocrinology” Monkey hair cortisol levels are not affected by how fast their hair grows.
May 2019 in “Journal of Acupuncture Research” Sebalgukhwa-san (SGS) can help treat hair loss without liver toxicity.
May 2018 in “Journal of advanced research in medicine” The document's conclusion cannot be provided because the document is not accessible or understandable.
January 2018 in “대한본초학회지(본초분과학회지)” The herbal extract SHJ promotes hair growth and increases melanin production.
January 2018 in “Surgical and Cosmetic Dermatology” The method is effective for evaluating hair loss treatments quickly and affordably.
September 2017 in “Journal of Clinical Dermatology” A growth factor cocktail with FGF9 and microneedling effectively increases hair density and diameter in hair loss patients.
April 2017 in “Journal of dermatology & cosmetology” The marine protein complex, Viviscal®, was found to effectively reduce hair loss and improve hair, skin, and nails quality in women.
April 2013 in “Cancer Research” A botanical extract was found to be a safe treatment that may prevent hair loss in chemotherapy patients.
January 2013 in “Journal of The Korean Medical Association” The document's conclusion cannot be provided because the text is in Korean and cannot be parsed.
July 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” New treatment with Wnt proteins and growth factors safely increases hair thickness.
February 2011 in “Vestnik dermatologii i venerologii” Women of child-bearing age with androgenic alopecia lose hair density, especially in certain areas, and their hair becomes thinner. They also lose more than twice as much hair as healthy women.
September 2023 in “International Journal of Trichology” Adipose-derived stem cells may help with hair loss, but more research is needed.
March 2023 in “Journal of Cosmetic Dermatology” Low-dose oral minoxidil improved hair growth when topical treatments failed.
January 2023 in “Frontiers in Medicine” ALRV5XR is the most effective hair regrowth treatment at 24 weeks.
September 2021 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” January 2021 in “Medpulse International Journal of General Medicine” January 2018 in “Surgical and Cosmetic Dermatology” Latanoprost and minoxidil effectively control hair loss and increase hair count.
May 2016 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” 
December 2014 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Low-level light therapy significantly increased hair density and thickness in people with hair loss, but they didn't notice a difference.
March 2014 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Dutasteride 0.5mg was found to be more effective than finasteride 1mg in treating male pattern hair loss, with similar side effects.
February 2014 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” 
August 2011 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” 5% minoxidil foam used once daily is as effective as 2% minoxidil solution used twice daily for hair loss in women, but with fewer side effects like itching and dandruff.
January 2005 in “Translational and Clinical Pharmacology” HDMHG0401-10 improves hair loss in men with androgenetic alopecia and has no major side effects.
January 1989 in “Springer eBooks” September 2022 in “Applied sciences” Combining micro-needling, LED therapy, and growth factors with Finasteride® significantly improves hair growth.
January 2022 in “Biomedical Reports” Inaudible sound at 30 kHz can boost hair growth and decrease hair loss by promoting cell growth and reducing cell death in hair follicles.
405 citations,
January 2004 in “Journal of Investigative Dermatology” Hair follicle size and distribution vary significantly across different body sites.
214 citations,
September 2015 in “Stem Cells Translational Medicine” Platelet-rich plasma injections significantly improved hair regrowth and thickness in patients with hair loss.
58 citations,
January 2015 in “International Journal of Trichology” Platelet-rich plasma, which carries growth factors, could be a promising treatment for non-scarring hair loss, promoting hair growth and density with no major side effects.