1 citations
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January 2019 in “Journal of Biomedical Science and Engineering” This study reports that monthly subcutaneous injections of concentrated growth factors improved hair appearance and density in patients with androgenetic alopecia, with no side effects observed in the follow-up period.
This study found that low-level light therapy and fractional lasers are effective and safe treatments for androgenetic alopecia, with the greatest improvements in hair density and thickness seen in combination therapies.
This study reports that low-level light therapy and fractional lasers are effective and safe treatments for androgenetic alopecia, with more pronounced results when combined with other therapies.
In this study, baseline neutrophil-to-lymphocyte ratio (NLR) was associated with predicting early trichoscopic response in patients undergoing PRP-based treatment for non-scarring alopecia.
March 2026 in “Journal of Pakistan Association of Dermatologists” This study found that low-dose oral minoxidil was more effective than topical minoxidil in increasing hair density and patient satisfaction among men with androgenetic alopecia, with fewer local side effects and better compliance reported over six months.
March 2026 in “International Journal of Current Pharmaceutical Review and Research” This study found that exosome therapy led to significantly better hair regrowth and patient satisfaction than platelet-rich plasma in men with androgenetic alopecia.
October 2025 in “Journal of Craniofacial Surgery” In this study, microneedling followed by topical 2% chitosan significantly improved hair growth parameters in patients with androgenetic alopecia, comparable to results with 5% minoxidil, but a small sample size limits definitive conclusions on their relative efficacy.
October 2025 in “Dermatologica Sinica” This study's network meta-analysis reported that botulinum injection combined with red laser and topical minoxidil is most effective for increasing hair density in androgenetic alopecia when using low-level laser therapy.
September 2025 in “Dermatology and Therapy” This systematic review and meta-analysis found that platelet-rich plasma (PRP) therapy is effective in increasing hair density and reducing hair loss for alopecia, with variations in response based on activation status.
August 2025 in “Archives of Dermatological Research” In this randomized controlled trial, oral minoxidil at 2.5 mg daily was more effective than topical minoxidil for increasing hair thickness, counts, and density in men with androgenetic alopecia, demonstrating more significant improvements and better compliance over six months.
This review found that exosome therapy shows the most promise for hair regrowth and safety in treating androgenetic alopecia, surpassing platelet-rich plasma, while minoxidil remains less effective but more accessible. Further research is needed to refine these treatments.
May 2025 in “International Journal of Cosmetic Science” In this study, researchers found that a shampoo containing caffeine and adenosine significantly altered the scalp microbiome and lipidome in subjects with hair loss over 12 weeks, which may suggest a role for these compounds in enhancing anti-hair loss processes.
December 2024 in “Research Square (Research Square)” In this phase I/II clinical trial, placenta-derived mesenchymal stem cell exosome therapy significantly improved hair density and diameter, and reduced hair loss in patients with androgenetic alopecia, though further large-scale studies are needed to confirm these results and investigate the underlying molecular mechanisms.
August 2024 in “Journal of Cosmetic Dermatology” This study reported significant improvements in hair density and growth ratio in androgenetic alopecia patients receiving concentrated growth factor injections, with benefits sustained for 6 months.
May 2024 in “Journal of Cosmetic and Laser Therapy” This study found that three sessions of injectable platelet-rich fibrin (i-PRF+) significantly improved hair follicle density, hair volume, and thickness, as well as patient satisfaction in women with female pattern hair loss, with only minor self-limited adverse effects reported.
August 2023 in “Aesthetic Plastic Surgery” This meta-analysis found that PRP monotherapy improved hair density in androgenetic alopecia patients but did not affect hair diameter, with stronger effects observed in male subjects.
December 2020 in “Daehanhanuihakoeji” This study found that Rumex japonicas Houttuyn ethanol extract may promote hair growth and protect against oxidative stress-induced hair damage in mice and HaCaT cells.
March 2015 in “Daehan boncho haghoeji/Daehan bonchohak hoeji” This study found that HET extract increased dorsal hair density and VEGF protein expression in a hair growth animal model suggesting its potential efficacy for alopecia treatment.
This review investigates whether combining microneedling with minoxidil is more effective than using minoxidil alone for increasing hair density and diameter in patients with alopecia. Results are not reported.
June 2022 in “International journal of drug delivery technology” This study found that Convolvulus arvensis ethanolic extract may promote hair growth and reduce hair loss in albino mice with testosterone-induced baldness by increasing follicular density and the anagen/telogen ratio.
March 2020 in “Journal of Laser Applications” This meta-analysis reported that photobiomodulation therapy may improve hair density and stimulate hair growth in patients with androgenic alopecia compared to sham treatments, but larger studies are needed to confirm these findings.
April 2018 in “Selçuk Üniversitesi Tıp Fakültesi dergisi” This study found that repeated PRP injections in patients with androgenetic alopecia may lead to hyperalgesia, where pain is felt with less stimulus after each treatment.
January 2013 in “프로그램북(구 초록집)” This study found that ADSC-conditioned media was effective in increasing hair density and thickness in female pattern hair loss patients over a 12-week period.
42 citations
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May 2007 in “Endocrinology and metabolism/American journal of physiology: endocrinology and metabolism” In this animal study, administering testosterone alongside a 5α-reductase inhibitor counteracted testosterone's effects on prostate enlargement while preserving its beneficial effects on muscle and bone.
38 citations
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February 2021 in “Journal of Investigative Dermatology” This review examines the complexities of age-related skin healing and discusses how translating findings from model organisms to humans could enhance understanding and treatment of impaired regeneration in aging populations, but it reports no new clinical results.
5 citations
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January 2020 in “International Journal of Trichology” This study found that both microneedling and microneedling with platelet-rich plasma improved hair thickness and density in male pattern alopecia, but no additional benefit was observed with the addition of platelet-rich plasma.
1 citations
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October 2002 in “Dermatologic Surgery” This review summarizes expert opinions on the use of approved pharmacologic treatments alongside hair transplantation, highlighting their potential to enhance hair density and regrowth speed while reducing further hair loss, but reports no new clinical trial results.
November 2023 in “Stem cells and cloning” This study reported that adipocyte-derived mesenchymal stem cells-conditioned media significantly improved hair density, thickness, and follicular hair units in telogen effluvium patients, with positive outcomes in 70%-92% of cases, regardless of age.
164 citations
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January 2014 in “Journal of Cutaneous and Aesthetic Surgery” This study found that PRP injections may improve hair density and reduce hair loss in patients with androgenetic alopecia without significant side effects, but further research is needed to confirm efficacy.
74 citations
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January 2015 in “Asian Journal of Transfusion Science” This study found that platelet-rich plasma injections led to improvements in hair counts, thickness, and strength in patients with androgenic alopecia, showing promise as an effective treatment with no major adverse effects.