5 citations
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April 2017 in “Dermatologic Surgery” PRP treatment satisfies 58% of female hair loss patients, with most noticing fuller, thicker hair and less shedding.
November 2025 in “Andalas University eThesis (Andalas University)” This study found that a rosemary extract hair tonic at concentrations up to 15% effectively promotes hair growth in male Wistar rats, achieving longer and thicker hair compared to minoxidil 2%, and causing fewer side effects.
1 citations
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December 2018 in “Journal of Cosmetic Dermatology” In this study, androgenetic alopecia patients with thin hair were found to have a higher likelihood of experiencing prostatic enlargement and related urinary symptoms compared to those with thicker hair.
7 citations
,
November 1987 in “Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy” This article reviews the potential of topical minoxidil to cosmetically thicken hair in some individuals with male pattern hair loss, but it reports no new clinical results.
36 citations
,
September 2011 in “British Journal of Dermatology” This study found that white hair exhibits increased expression of genes and proteins linked to active hair growth compared to black hair, suggesting that hair greying is associated with enhanced hair growth activity.
January 2017 in “대한미용학회지” This study observed that hair follicle cuticular cells undergoing keratinization were significantly thicker than those in a normal hair shaft, due to incomplete loss of cytosol.
409 citations
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May 1991 in “Genes & Development” This study observed that overexpression of TGF-alpha in transgenic mice led to thicker epidermis and stunted hair growth, particularly in regions with normally thick skin and low hair density.
7 citations
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September 2014 in “European Journal of Dermatology” This study found a significant positive correlation between hair thickness and growth rate, with a notably slower growth rate observed in men with male pattern hair loss compared to healthy controls.
1 citations
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November 2023 in “Rice” This study found that PRX102, a peroxidase with a unique polar localization pattern, plays a role in root hair growth by aiding the transport of materials to the tips of growing root hairs.
22 citations
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February 2008 in “Journal of Dermatological Science” This research found that spontaneous and depilation-induced hair growth result in biologically distinct telogen phases in murine skin, with variations in thickness, pigment content, and hair follicle composition.
January 2023 in “Vìsnik problem bìologìï ì medicini” Androgenic alopecia causes hair follicle degradation and skin restructuring, but some hair elements remain.
March 2012 in “Journal of The American Academy of Dermatology” This study found that white females with female pattern hair loss had higher hair density in the occipital scalp area, while Asian females had thicker hair diameters in both frontal and occipital areas.
6 citations
,
March 1986 in “PubMed” This case study describes a 19-year-old female patient who gained 13 kg and experienced hair changes while on valproic acid, and partially lost weight after reducing the dosage, but hair changes persisted.
August 2021 in “Journal of the American Academy of Dermatology” This article reviews the use of hair filler fibers for improving the appearance of thinning hair and calls for more studies on patient satisfaction and side effects, without providing new clinical results.
54 citations
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June 1985 in “American Journal of Dermatopathology” This abstract does not provide specific findings or results.
11 citations
,
November 2015 in “Skin Research and Technology” This study found that individuals with patterned hair loss, both male and female, showed a slower linear hair growth rate compared to controls with hair of equal thickness.
2 citations
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October 2022 in “Journal of structural biology” This study found that age-related hair thinning in Caucasian women over 50 involves significant structural changes within the hair follicle, suggesting an "aged hair program" rather than just producing thinner hairs.
January 2016 in “Georg Thieme Verlag eBooks” Hair transplantation in East Asians needs special techniques to ensure natural results and prevent complications due to their unique hair and scalp characteristics.
February 2026 in “Journal of Cosmetic Dermatology” This study found that a proprietary saw palmetto extract significantly improved hair growth in men and women with self-perceived thinning hair over a 6-month period, outperforming placebo on key hair growth parameters without any treatment-related adverse events.
26 citations
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March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
3 citations
,
January 2021 in “Plastic and Aesthetic Research” This study found that hair mass index can effectively link hair productivity with clinical scalp coverage perception, suggesting its potential usefulness in diagnosing hair loss patterns and responses to treatment.
39 citations
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April 2020 in “Clinical, Cosmetic and Investigational Dermatology” This review discusses the unique characteristics and disorders of Asian hair, emphasizing the need for more comprehensive studies in this area.
34 citations
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August 2003 in “Clinical and Experimental Dermatology” This study found that hair diameter increases toward the scalp during pregnancy, a novel observation compared to the normal decrease seen in nonpregnant women.
17 citations
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December 2004 in “The Journal of Men's Health & Gender” This article discusses the role of androgens in hair follicle changes, explaining how dihydrotestosterone contributes to hair thinning on the scalp, while promoting thicker facial hair in men, and reports no new clinical results.
10 citations
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June 2019 in “Cosmetics” This study observed that individuals with mixed ethnicity had hair that varied widely in shape and showed significant surface damage near the root, differing from monoracial hair characteristics.
8 citations
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January 2013 in “Journal of The Korean Medical Association” This article reviews factors influencing hair growth and treatment options for androgenetic alopecia, but it reports no new clinical results on their effectiveness.
7 citations
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November 2021 in “Clinical, Cosmetic and Investigational Dermatology” This study describes a novel FUE device that may perform successfully across various patient scenarios, adapting to differences in skin firmness, thickness, and hair curliness.
2 citations
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January 1994 in “Journal of S C C J” This study found that objective measurements of hair growth, such as hair growth rate and diameter, can provide a more accurate evaluation of androgenic alopecia than subjective grading alone.
July 2022 in “Plastic surgery and modern techniques” This study found that ADMSC-enriched lipografts used in conjunction with Follicular Unit Extraction improved graft survival, reduced post-surgery edema, and increased patient satisfaction in alopecia treatment.
March 2012 in “Journal of The American Academy of Dermatology” In this study, white females with Ludwig I female pattern hair loss had higher hair density on the occipital scalp, while Asian females had thicker hair diameters in both frontal and occipital areas.