3 citations
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April 2018 in “Cosmetics” This study found that females with androgenic alopecia experienced greater improvements in hair density after cosmetic treatments compared to males, in a cohort stratified by age and gender.
March 2023 in “Seminars in reproductive medicine” This review discusses the link between polycystic ovary syndrome and sleep problems, primarily obstructive sleep apnea, and calls for more research on other sleep disturbances in affected women and adolescent girls.
January 2008 in “Springer eBooks” Thyroid disease can cause hair loss and treating thyroid problems might help with hair disorders.
19 citations
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March 2011 in “Cutaneous and Ocular Toxicology” Some chemicals absorbed through the skin can cause serious health problems.
53 citations
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June 2017 in “Skin appendage disorders” This review suggests that platelet-rich plasma may be effective in increasing hair density in patients with androgenetic alopecia, but more research is needed to determine the best treatment protocol.
39 citations
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January 2012 in “International Journal of Trichology” This study found that topical melatonin solution was associated with positive effects on hair density and reduction in hair loss for androgenetic alopecia, with good tolerability reported in several clinical trials.
29 citations
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July 2009 in “Journal of Dermatology” This study confirmed that 5% topical minoxidil is more effective than 1% in increasing hair density in Japanese men with androgenetic alopecia, with no significant difference in adverse event rates.
13 citations
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May 2004 in “Dermatologic Surgery” This article outlines a method for achieving natural-looking hair direction and density in hair transplants using specific parting and incision techniques, without accelerating hair loss in the recipient area.
November 2002 in “Dermatologic Surgery” This review discusses the surgical methods of hair restoration, highlighting the density benefits of scalp reduction and rotation, but reports no new clinical findings.
July 2025 in “International Journal of Dermatology Venereology and Leprosy Sciences” In this study involving 20 participants with alopecia areata, microneedling was reported to clinically improve hair density and growth in affected areas, with results starting around one month and concluding three months after the final treatment session.
31 citations
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January 1989 in “Clinical and Experimental Dermatology” In this study, topical 2% minoxidil did not significantly improve hair density measures in men with male pattern baldness, although there was no deterioration, suggesting a potential prophylactic effect.
30 citations
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November 2008 in “Facial Plastic Surgery” This review discusses hair transplant techniques for female pattern hair loss and reports no new clinical results; it highlights the benefits of transplants combined with various treatments for improved hair density and styling options.
30 citations
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July 2018 in “Scientific Reports” In this study, a high-fat, high-cholesterol diet in atherosclerotic mice led to skin inflammation and hair problems, which could be reversed by inhibiting glycosphingolipid synthesis.
25 citations
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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.
20 citations
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January 2017 in “Scientific reports” This study found that cetaceans have adapted their fibroblast growth factors to assist in low bone density, hypoxia tolerance, and the development of rigid flippers, reflecting significant evolutionary changes for aquatic life.
13 citations
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January 2013 in “Dermatologic Surgery” This survey estimates that the number of follicular units with "permanent" hair available for transplant varies based on hair density and projected male pattern baldness type, providing guidelines for realistic surgical goals.
7 citations
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March 2019 in “Medicine” This protocol outlines a study aiming to determine if combining 660 nm red laser photobiomodulation and microneedling increases hair density in female pattern hair loss, but it reports no results yet.
5 citations
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May 2020 in “Diagnostics” This study involving male patients with androgenic alopecia found that a higher baseline zinc plasma level, specifically above 10 µmol/L, may predict the success of treatment with 5% topical minoxidil, correlating with increased hair density and diameter in the parietal area.
4 citations
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August 2020 in “Journal of Cosmetic Dermatology” In this study, QR678® and QR678 Neo® injections significantly improved hair density and thickness in women with PCOS-related alopecia over eight sessions, with effects lasting over a year.
3 citations
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May 2019 in “Journal of Cosmetic Dermatology” This study found that a 12-week supplementation with MePL, a solution of miliacin encapsulated within polar lipids, significantly reduced hair density in the telogen phase and improved scalp dryness and hair brightness in women with telogen effluvium.
2 citations
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November 2002 in “Dermatologic Surgery” This review discusses three surgical strategies for hair restoration, emphasizing that both scalp reduction and flap rotation have unique benefits such as significant hair density, despite grafting techniques being more widely used, and reports no new clinical results.
1 citations
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January 2020 in “Qucosa (Saxon State and University Library Dresden)” This paper conducts a scientific evaluation of fine hair issues in American bovine hides and suggests measures to minimize this seasonal problem, particularly in winter production.
1 citations
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November 2019 in “The Korea Journal of Herbology” In this study, a herbal mixture (RAA) was found to promote hair growth in mice, showing increases in hair density and follicle size similar to minoxidil treatment.
July 2025 in “Highlights in Science Engineering and Technology” In this study, researchers found that nanomaterials designed for plastic surgery applications show promising results, including a 95% dynamic wrinkle filling rate and enhanced hair density by 41%; however, challenges like potential long-term safety issues and high production costs must be addressed.
June 2026 in “Revista Ibero-Americana de Humanidades, Ciências e Educação” This study concluded that 5% topical Minoxidil remains a first-line treatment for female androgenetic alopecia by increasing hair density and thickness, while low-dose oral Minoxidil and combination therapies may also be effective.
January 2026 in “Ciencia Latina Revista Científica Multidisciplinar” This study reports on a 14-year-old male with refractory diffuse alopecia areata who achieved full hair density restoration after three monthly sessions of microneedling combined with triamcinolone, dutasteride, and synthetic exosome treatment, highlighting exosomes' potential for enhancing traditional therapies in autoimmune hair loss cases.
This study observed that both intradermotherapy with 5% minoxidil and topical minoxidil application resulted in perceived improvements in hair density and thickness among patients with androgenetic alopecia, with no significant difference between the two groups.
38 citations
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January 2015 in “Journal of Cosmetic Dermatology” This study found that a 6-month supplementation with omega 3, omega 6, and antioxidants significantly improved hair density and reduced hair loss in women with female pattern hair loss.
22 citations
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May 2002 in “Skin Research and Technology” This study found that in male androgenetic alopecia, the contrast enhanced phototrichogram technique was superior in detecting changes in hair density and thickness compared to other methods.
15 citations
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January 2013 in “European Journal of Pediatrics” Patients with Shwachman-Diamond syndrome often get misdiagnosed due to a wide range of symptoms, including immune system problems and bone abnormalities.