14 citations,
July 2016 in “Toxicology and Industrial Health” Low doses of BPA can increase prostate growth and change hormone levels in adult rats.
August 2024 in “Bioorganic Chemistry” Cedrol from ginger can promote hair growth when taken orally.
November 2023 in “Clinical, Cosmetic and Investigational Dermatology” Saw palmetto extract reduced hair loss and improved hair growth in people with hair thinning.
August 2023 in “Journal of Chromatographic Science” A new method accurately measures three compounds in rat plasma from pine needle extracts, aiding future research on its use for hair loss.
November 2023 in “Food science of animal resources” Lactilactobacillus curvatus LB-P9 taken orally helps hair regrow faster and thicker in mice.
February 2023 in “Pharmaceutics” 40 citations,
February 1992 in “The Journal of Clinical Endocrinology and Metabolism” Taking finasteride pills and using minoxidil lotion together can help grow hair.
34 citations,
September 2013 in “Urology” Long-term use of a certain medication can worsen erectile function in aged rats by damaging penile muscle cells.
34 citations,
February 1992 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride and minoxidil together promote hair growth better than either alone.
13 citations,
February 2018 in “Dermatologic Therapy” Finasteride 2.5 mg/day can effectively treat female hair loss.
February 2022 in “Pakistan Journal of Medical and Health Sciences” Taking 2.5mg of finasteride daily can effectively improve hair loss in 62% of women, especially those pre-menopause or with less severe hair loss.
17 citations,
March 1992 in “PubMed” 
41 citations,
March 2007 in “Journal of dermatological science” Taking L-cystine and vitamin B6 can prevent hair loss caused by smoke in mice.
9 citations,
October 2017 in “Molecular Medicine Reports” Finasteride causes reduced tear flow and severe eye inflammation.
31 citations,
August 1975 in “Journal of Pharmaceutical Sciences” Minoxidil metabolizes similarly in monkeys and humans, but differently in dogs and rats.
2 citations,
January 1994 in “Yakubutsu dōtai” Finasteride has different absorption and metabolism in male and female rats, with higher concentrations in certain organs and mostly excreted through feces.
17 citations,
June 2019 in “Cellular signalling” Minoxidil helps protect and rebuild elastic fibers in arteries, improving artery function, especially in older females.
22 citations,
January 1979 in “JAMA” Minoxidil can lower blood pressure effectively and safely in emergencies.
10 citations,
October 2010 in “International Journal of Andrology” Finasteride doesn't affect oral testosterone undecanoate, and high DHT levels may cause acne, prostate issues, and hair loss.
11 citations,
December 2010 in “The Journal of Urology” Taking oral testosterone with or without dutasteride increases testosterone levels and could be an effective treatment for low testosterone.
6 citations,
May 2022 in “Colloids and Surfaces B: Biointerfaces” Eating peptides from certain shellfish may help wounds heal faster by reducing inflammation.
November 2019 in “Actas Dermo-Sifiliográficas” Oral minoxidil helps treat hair loss and has reversible side effects.
24 citations,
July 1983 in “Clinical and Experimental Dermatology” Tigason improved hair growth in a boy with monilethrix without side effects.
10 citations,
June 2005 in “Small ruminant research” Melatonin treatment may increase cashmere production in Spanish goats.
September 2012 in “The Thai journal of veterinary medicine” The dog’s skin infection improved with bee venom acupuncture and herbal medicine.
January 2023 in “Open veterinary journal” A cat developed skin problems from a certain brand of injected water pills, which went away after switching brands.
4 citations,
January 2015 in “Journal of microbial & biochemical technology” Biotin helps regulate proteins in the blood, which may explain its role in hair growth.
October 2012 in “Semina. Ciências Agrárias” A Shi Tzu dog with high cortisol levels improved after increasing the dose of trilostane.
3 citations,
October 2009 in “Iranian Journal of Basic Medical Sciences” Buxus wallichiana extract improves hair growth and has antioxidant properties, with oral use more effective than topical.
August 2024 in “Pharmaceuticals” Oral sturgeon oil promotes hair growth and improves gut health.