February 2026 in “The Journal of Dermatology” Ritlecitinib effectively regrows scalp, eyebrow, and eyelash hair in Asians with alopecia areata and is safe.
June 2001 in “International Journal of Cosmetic Surgery and Aesthetic Dermatology” Finasteride improves hair growth in men with androgenetic alopecia.
12 citations
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January 2018 in “PubMed” Y-27632 helps hair follicle stem cells grow and keep their abilities.
May 2016 in “Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)” 
July 1997 in “The Lancet” A new protein linked to Alzheimer's was discovered, and a hair loss treatment showed effectiveness but had some sexual side effects.
July 2025 in “Nutrición clínica y dietética hospitalaria/Nutrición clínica, dietética hospitalaria” Serenoa repens is the most effective supplement for treating androgenetic alopecia alone, while topical ketoconazole can be a helpful addition.
64 citations
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March 2008 in “Neuropsychopharmacology” Platelet-rich plasma helps human hair cells grow and survive better.
1 citations
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March 2026 in “American Journal of Clinical Dermatology” 
September 2024 in “Journal of the American Academy of Dermatology” The compounded topical solution is safe, stable, and effective for personalized alopecia treatment.
9 citations
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August 2023 in “Sexual Medicine Reviews” The effectiveness of platelet-rich plasma for erectile dysfunction is still unclear.
January 2026 in “Frontiers in Medicine” PP-PTKL may help treat hair greying, but more testing is needed.
Finasteride may reduce heart damage in rats.
July 2024 in “Journal of Investigative Dermatology” Reactive lipids from aging cells change the extracellular matrix, affecting cell function and inflammation.
2 citations
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April 2014 in “PubMed” Platelet Rich Plasma (PRP) shows promise for hair growth, ulcer healing, and skin rejuvenation, but more research is needed for consistent results and it's not suitable for people with certain blood conditions.
May 2022 in “Reactions Weekly” 14 citations
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April 2024 in “The Journal of Steroid Biochemistry and Molecular Biology” 5α-reductases increase epitestosterone's effect on androgen receptors.
3 citations
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June 2021 in “Cosmetics” A mix of sulforaphane, L-menthol, and dexpanthenol could help increase hair growth and reduce hair loss.
September 2020 in “Current Enzyme Inhibition” Three compounds were found to inhibit a prostate disease-related enzyme and reduce prostate size more effectively than the current treatment, suggesting they could be used for treating benign prostatic hyperplasia.
January 1978 in “Enlighten: Theses (The University of Glasgow)” Inhibiting testosterone 5alpha-reductase may help treat benign prostatic hyperplasia.
Encapsulating hair loss drugs in cyclodextrins improves their solubility and reduces scalp irritation.
November 2021 in “DOAJ (DOAJ: Directory of Open Access Journals)” Resveratrol may help promote hair growth and treat hair loss.
1 citations
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January 2004 in “Expert Opinion on Pharmacotherapy” Finasteride effectively treats male pattern hair loss by promoting hair growth and density.
October 2015 in “Reactions Weekly” A woman got a scalp condition from using latanoprost, but it improved after stopping the drug and starting other treatments.
136 citations
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February 2017 in “International Journal of Molecular Sciences” PRP treatment improves hair growth, and the device used can affect results, with some being more effective.
April 2018 in “Journal of Investigative Dermatology” Resveratrol activates the Nrf2 pathway in human skin, significantly increasing the production and distribution of the antioxidant glutathione.
4 citations
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May 2019 in “The World Journal of Men's Health” Taking 5 alpha reductase inhibitor medication slightly increases the risk of depression, especially as you get older.
Resistance exercise helps improve muscle protein balance disrupted by finasteride.