148 citations
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March 2022 in “The New England Journal of Medicine” In two phase 3 trials, this study found that oral baricitinib significantly improved hair regrowth compared to placebo in adults with severe alopecia areata after 36 weeks, though longer trials are needed to ascertain its long-term efficacy and safety.
18 citations
,
March 2022 in “Drug design, development and therapy” This review examines the definition, classification, mechanism, clinical efficacy for hair regrowth, and potential adverse effects of platelet rich plasma, but does not present new experimental results.
7 citations
,
February 2022 in “Journal of Personalized Medicine” This meta-analysis found that platelet-rich plasma treatments significantly increased hair density in patients with androgenic alopecia, with results influenced by treatment frequency and patient age.
19 citations
,
December 2020 in “Plastic and Reconstructive Surgery” This article reviews the use of platelet-rich plasma for skin rejuvenation and hair regrowth, noting positive outcomes despite variability in preparation and a lack of standardized protocols.
13 citations
,
September 2020 in “International Journal of Molecular Sciences” This study found that combining platelet-rich plasma therapy with minoxidil was more effective in treating androgenetic alopecia in men than either treatment alone.
10 citations
,
September 2020 in “Archives of Dermatological Research” Both methods improve hair density and thickness; double-spin may be more effective.
4 citations
,
September 2020 in “Journal of Cosmetic Dermatology” This study found that platelet-rich plasma injections promote hair growth and are safe and effective for treating androgenetic alopecia.
44 citations
,
February 2020 in “Expert Opinion on Biological Therapy” In this study, autologous non-activated platelet-rich plasma was associated with greater hair re-growth than autologous activated platelet-rich plasma over long-term follow-up.
3 citations
,
December 2019 in “Journal of Cosmetic and Laser Therapy” This study found that plasma rich in growth factors showed promising results for increasing hair number and thickness in androgenic alopecia patients, with better outcomes after multiple injections.
4 citations
,
October 2019 in “Skin appendage disorders” This study found that autologous activated PRP injections significantly increased hair density in patients with androgenetic alopecia, with patients reporting high satisfaction and few side effects.
136 citations
,
May 2019 in “Cells” This review discusses the advancements in intraoperative stem cell therapies and highlights their potential to improve hair regrowth, but it reports no new clinical results.
7 citations
,
April 2019 in “Aesthetic Surgery Journal” This study found that repeated applications of both nonactivated and activated PRP in rats led to increased hypersensitivity to pain, which may be linked to elevated nerve growth factor levels and inflammatory mediators.
14 citations
,
March 2019 in “Journal of Cosmetic Dermatology” This laboratory study found that activated platelet‐rich plasma supernatant enhanced hair growth signaling pathways in cultured human dermal papilla cells, suggesting potential for treating androgenic alopecia.
57 citations
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October 2018 in “Journal of The American Academy of Dermatology” This study found that platelet-rich plasma significantly increased hair count, density, and the percentage of anagen hairs in patients with androgenetic alopecia, but these improvements did not correlate with platelet or growth factor levels.
September 2018 in “Selçuk Üniversitesi Tıp Fakültesi dergisi”
45 citations
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August 2018 in “Stem Cells International” This article reviews the potential of adipose-derived and Wharton’s jelly stem cells in alopecia treatment but presents no new clinical findings, highlighting their potential benefits and limitations in regenerative medicine.
1 citations
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May 2018 in “Journal of Evolution of medical and Dental Sciences” This study assessed the safety, efficacy, and feasibility of platelet-rich plasma injections in treating androgenetic alopecia, but it reports no clinical results.
17 citations
,
January 2018 in “Journal of cutaneous and aesthetic surgery” This article discusses various issues and controversies in hair transplantation, including ethical considerations, the debate between follicular unit transplantation and excision, the concept of a safe donor area, the use of platelet-rich plasma, and the minimum qualifications needed for practitioners.
23 citations
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November 2017 in “Stem cell investigation” This study found that platelet lysate produced higher follicular regeneration in hair restoration surgeries compared to activated PRP and saline, with significant gains in both follicular unit and hair density.
24 citations
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November 2017 in “Aesthetic Plastic Surgery” In this study, researchers found that homologous PRP (h-PRP) significantly increased hair density more than both nonactivated (n-PRP) and activated (a-PRP) autologous PRP in patients with androgenetic alopecia, suggesting h-PRP as a potentially more effective treatment option for hair loss.
4 citations
,
November 2017 in “PubMed” This pilot study found a correlation between individual genetic inflammation profiles and the effectiveness of PRP treatment for hair regeneration, with differences observed between male and female responses.
12 citations
,
October 2017 in “Journal of Cosmetic Dermatology” This study found that plasma rich in growth factors (PRGF) as an adjuvant to follicular unit extraction (FUE) surgery may enhance hair graft performance and reduce post-surgical inflammation and pain in hair loss patients.
52 citations
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May 2017 in “Journal of Cosmetic Dermatology” This study found that platelet-rich plasma injections significantly improved hair density, thickness, and patient satisfaction in women with female pattern hair loss compared to a placebo.
178 citations
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April 2017 in “Journal of The American Academy of Dermatology” This systematic review and meta-analysis found that minoxidil, finasteride, and low-level laser light therapy significantly improve hair growth in men with androgenetic alopecia, while minoxidil is also effective for women, compared to placebo.
70 citations
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February 2017 in “Dermatologic Surgery” This study reports that plasma rich in growth factors appeared to improve hair follicle regeneration and patient satisfaction in individuals with androgenetic alopecia, though further trials are needed.
136 citations
,
February 2017 in “International Journal of Molecular Sciences” This study observed that autologous platelet-rich plasma treatment improved hair count and density in areas with androgenetic alopecia compared to placebo, with differing outcomes based on the PRP collection device used.
19 citations
,
January 2017 in “International Journal of Trichology” This study found that a standardized PRP application protocol was effective as a coadjuvant therapy in most patients with androgenetic alopecia who did not respond to minoxidil or finasteride, based on improvements in Ebling's scale.
62 citations
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October 2016 in “Dermatologic Therapy” This study found that platelet-rich plasma was more effective for treating alopecia areata than topical 5% minoxidil, leading to earlier hair regrowth and reduction in hair abnormalities.
61 citations
,
September 2016 in “Journal of Cosmetic and Laser Therapy” This study found that platelet-rich plasma was not effective in treating androgenetic alopecia in men with grade 4–6 hair loss.
24 citations
,
August 2016 in “JAMA Facial Plastic Surgery” This study found that men appearing in photos after a hair transplant were perceived by observers as younger, more attractive, more successful, and more approachable compared to their pretransplant images.
42 citations
,
May 2016 in “American Journal of Clinical Dermatology” This review discusses the use of platelet-rich plasma for pattern hair loss treatment and examines existing clinical studies without presenting new clinical results.
136 citations
,
April 2016 in “Dermatologic Surgery” This study found that platelet-rich plasma significantly increased hair density and anagen hair proportions in androgenetic alopecia patients, suggesting potential as an adjuvant therapy.
214 citations
,
September 2015 in “Stem Cells Translational Medicine” This study found that platelet-rich plasma injections significantly increased hair count and density in patients with male pattern hair loss without major side effects, suggesting it may be a safe and effective treatment option.
74 citations
,
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.
25 citations
,
May 2014 in “Facial Plastic Surgery” In this study, intradermal injections of autologous platelet-rich fibrin matrix significantly increased hair density in patients with androgenetic alopecia at 2 and 3 months after initial treatment.
15 citations
,
January 2014 in “Hair therapy & transplantation” This study found that treatment with platelet-rich plasma showed some hair re-growth in patients with severe alopecia areata, but results were not sustained and treatment was associated with pain and discomfort.
183 citations
,
January 2014 in “BioMed Research International” This study reported that AA-PRP injections significantly increased hair count and density in individuals with pattern hair loss compared to baseline, demonstrating their potential for enhancing hair growth.
115 citations
,
January 2014 in “Journal of Cutaneous and Aesthetic Surgery” In this study, PRP injections increased hair count and reduced hair loss in patients with androgenic alopecia not responding to minoxidil and finasteride, with high patient satisfaction reported.
164 citations
,
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.
205 citations
,
April 2013 in “British Journal of Dermatology” In this study, platelet-rich plasma significantly increased hair regrowth and reduced symptoms of alopecia areata compared to triamcinolone acetonide or placebo, with no observed side effects.
40 citations
,
February 2013 in “American Journal of Clinical Dermatology” This study found that people with androgenic alopecia, particularly women, are more prone to anxiety and depression, often adopting avoidant coping strategies, which are linked to emotional and psychological impacts rather than clinical severity.
270 citations
,
March 2012 in “Dermatologic Surgery” This study found that autologous platelet-rich plasma increased hair growth potential by enhancing dermal papilla cell proliferation and stimulating key signaling pathways in both cell cultures and mice models.
51 citations
,
February 2009 in “Journal of dermatological science” In this study, β-catenin overexpression in human hair outer root sheath cells increased the expression of Pitx2, which activated the follicular differentiation pathway, suggesting Pitx2's potential role as a modulator in hair growth control.
251 citations
,
October 2006 in “Plastic and reconstructive surgery/PSEF CD journals” In this study, platelet plasma growth factors from patients' autologous plasma improved follicular unit yield in baldness surgery by 15.1% compared to control areas.
277 citations
,
June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” This article reviews the role of epithelial-mesenchymal interactions in hair follicle morphogenesis and the hair cycle, suggesting potential paths for developing treatments for hair growth disorders but providing no new clinical findings.
236 citations
,
July 2001 in “Trends in Molecular Medicine” This review discusses common hair loss conditions and explores how advancements in hair follicle biology might lead to more effective treatments but reports no new results.
1113 citations
,
August 1999 in “The New England Journal of Medicine” This article discusses the biologic and psychosocial significance of hair, the current limitations in hair growth drugs, and anticipates future therapies based on advancing hair follicle research.