In this study, a Monte Carlo-generated synthetic cohort analysis found that higher simulated cannabis exposure was linked to increased self-assessed hair loss severity and reduced follicular density, suggesting potential connections worth exploring in further clinical research.
January 2026 in “International Journal of Dermatology Venereology and Leprosy Sciences” In this randomized study, intradermal injections of dutasteride effectively improved androgenetic alopecia in 15 male patients, showing significant clinical improvement within one month and being well-tolerated without notable side effects, though the improvement was negatively correlated with longer disease duration.
In this simulation study, higher cannabis exposure was associated with increased hair shedding severity and reduced follicular density, with greater effects observed in female-assigned profiles, but these associations are based on modeled data and not clinical observations.
November 2025 in “Journal of Pioneering Medical Science” This systematic review reported that probiotics, prebiotics, synbiotics, postbiotics, and dietary supplements may improve hair density and reduce dandruff severity in individuals with scalp disorders, potentially by modifying inflammation, oxidative stress, and microbiota composition; however, variability across studies limits the strength of these conclusions.
September 2025 in “Clinical Cosmetic and Investigational Dermatology” This analysis concluded that mesenchymal stem cell-derived exosome therapy may offer a promising and safe approach for hair restoration, especially in androgenetic alopecia, despite limitations in study consistency and size.
August 2025 in “Benha Medical Journal” This systematic review found that platelet-rich plasma significantly improved hair density and count in androgenetic alopecia patients compared to controls, with minimal adverse effects reported.
May 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that hair with lower levels of keratin associated proteins reduced the foreign body response in mouse subcutaneous implant tests compared to hair with higher keratin levels.
June 2020 in “Aesthetic Surgery Journal” This study found that PRP with high estrogen levels increased hair density more effectively and earlier than autologous PRP in male patients with androgenic alopecia.
January 2018 in “Sohag Medical Journal” Combining topical dutasteride with microneedling is more effective for hair growth than microneedling alone.
21 citations
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January 2015 in “Oncology Research and Treatment” This study found that sensor-controlled scalp cooling was effective in preventing hair loss during chemotherapy, particularly in premenopausal patients and those without systemic comorbidities or additional medications.
47 citations
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August 2011 in “Journal of The European Academy of Dermatology and Venereology” This study found that treatment with a 1550 nm fractional erbium–glass laser increased hair density and thickness in women with female pattern hair loss, suggesting it may be an effective and safe option.
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.
136 citations
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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.
136 citations
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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.
88 citations
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July 2019 in “International Journal of Molecular Sciences” In this study of patients with Androgenic Alopecia, micro-grafts containing HD-AFSCs resulted in significantly improved hair density and follicle count over 11 months compared to a saline solution, suggesting a potential alternative therapy for hair regrowth.
86 citations
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February 2003 in “Journal of The American Academy of Dermatology” This article discusses various mechanisms for promoting hair growth in pattern hair loss and highlights the challenge of balancing short-term measurable results in trials with the need for long-term efficacy data.
76 citations
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December 2006 in “Journal of Dermatological Science” This study observed that Japanese women experience diffuse central hair loss after age 40, characterized by reduced hair density and thicker hair ratio rather than vellus-like hairs.
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.
69 citations
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April 2010 in “British Journal of Dermatology” This study found a significant association between androgenetic alopecia and metabolic syndrome, highlighting high-density lipoprotein cholesterol as a particularly important factor.
64 citations
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June 2010 in “Journal of The European Academy of Dermatology and Venereology” This study suggests that 5 mg/day oral finasteride may increase hair density and thickness in normoandrogenic Asian women with female pattern hair loss over 12 months.
51 citations
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January 2004 in “Skin Pharmacology and Physiology” This review discusses various techniques for evaluating hair shedding and alopecia but reports no new clinical results. The authors emphasize the value of specific clinical and instrumental methods in assessing hair growth.
45 citations
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May 2018 in “Stem Cell Research & Therapy” In this study, patients receiving adipose-derived stromal vascular cell transplantation for alopecia areata experienced significant hair regeneration, increased growth, and improved hair quality after 3 and 6 months, indicating potential efficacy of this stem cell-based therapy for hair loss.
45 citations
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January 2013 in “Journal of Human Reproductive Sciences” In this study, women with PCOS had a higher prevalence of hepatic steatosis compared to controls, with associated metabolic issues like insulin resistance and metabolic syndrome.
41 citations
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January 2020 in “BioMed Research International” This study found that micrografts containing human hair follicle mesenchymal stem cells significantly increased hair count and density compared to placebo over 58 weeks in patients experiencing hair loss.
41 citations
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April 2012 in “Journal of The European Academy of Dermatology and Venereology” This study found that mesotherapy with a dutasteride-containing preparation improved hair growth indicators in female pattern hair loss better than saline, with minimal side effects and greater effectiveness in patients with shorter disease duration.
39 citations
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March 2019 in “Dermatologic Surgery” This study's meta-analysis reported that PRP injections significantly increased hair density compared to baseline and placebo in androgenetic alopecia patients, supporting its use as a beneficial treatment.
39 citations
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November 2017 in “Journal of The American Academy of Dermatology” This review presents standardized methods for assessing and tracking hair loss in alopecia areata but reports no clinical results, with the authors noting time limitations in clinical practice.
33 citations
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January 2021 in “Aesthetic Surgery Journal” This review suggested that low-level light therapy using red/near-infrared light could be a safe and effective treatment for various skin and hair conditions, though more robust trials are needed to solidify its clinical utility.
33 citations
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July 2020 in “Journal of The American Academy of Dermatology” In this study, PRP increased hair density in areas treated for androgenetic alopecia, but there was no significant difference when compared to placebo-treated areas.
33 citations
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February 2019 in “Journal of Tissue Engineering and Regenerative Medicine” This review discusses the use of platelet-rich plasma for various dermatological conditions and highlights the need for more research to standardize its protocols and understand its biological mechanisms.