July 2024 in “Applied Sciences” This study found that bimatoprost was significantly more effective than sweet almond oil in increasing eyebrow hair density and length in young women over a 5-week period.
4 citations
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October 2021 in “Journal of The European Academy of Dermatology and Venereology” Low-dose oral minoxidil increases hair density and thickness in people with hair loss.
1 citations
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May 2021 in “Journal of Cosmetic Dermatology” This study found that a cosmetic foam reduced the telogen rate in men with androgenetic alopecia, suggesting a potential benefit against male pattern hair loss.
4 citations
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November 2016 in “Dermatologic Therapy” Topical tretinoin may increase beard hair density.
27 citations
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February 2017 in “Clinical, Cosmetic and Investigational Dermatology” In this study, a topical formulation with compounds from the monoterpenoid family significantly improved hair growth indicators like anagen:telogen ratio, hair fall, and visual hair density in men and women with pattern hair loss.
March 2022 in “Hair transplant forum international” In this study, a treatment combining fractional 1927nm laser with a growth factor serum was found to increase hair density and diameter in patients with androgenic alopecia over six months, without side effects, and three treatments at 4-weekly intervals were deemed most effective.
417 citations
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February 2004 in “The Journal of Clinical Endocrinology and Metabolism” This study found that testosterone therapy increased bone mineral density in older men with low testosterone, and combining it with finasteride may reduce prostate enlargement associated with testosterone treatment.
December 2025 in “Medical Lasers” This prospective study found that 1,927-nm fractionated thulium laser treatment significantly increased hair and terminal hair counts in 11 men with pattern hair loss, although it did not change average hair thickness, suggesting it may be a promising therapy for this condition.
15 citations
,
July 2008 in “Journal of Dermatological Science” This study found that ephrin-A3 accelerates hair follicle development and increases hair follicle density in neonatal mice, suggesting its involvement in hair growth regulation.
1 citations
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May 2022 in “International Journal of Cosmetic Science” This study reports that Edelweiss extract significantly prolonged the anagen phase and increased hair density, suggesting potential as an anti-hair loss treatment.
3 citations
,
November 2018 in “Hair transplant forum international” This study found that using body hair along with scalp hair in hair transplantation can significantly increase visual density and improve coverage in patients with higher grades of androgenetic alopecia.
23 citations
,
July 2012 in “Calcified Tissue International” In this study, a single dose of PTH–CBD produced a sustained increase in bone mineral density for up to a year in mice, indicating its potential as an osteoporosis treatment.
July 2026 in “British Journal of Dermatology” This study observed that administering low-dose oral minoxidil during the daytime led to significantly greater hair density improvements in androgenetic alopecia patients compared to nighttime dosing. This suggests that circadian variations in hair follicle biology could be important for optimizing treatment outcomes.
10 citations
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October 2015 in “Journal of Dermatology” This study found that adenosine significantly increased the proportion of thick hair in Caucasian men with androgenetic alopecia, with no reported adverse effects.
November 2025 in “Journal of Clinical Medicine” This study found that a novel drinkable supplement significantly increased hair density and reduced hair shedding over six months in women with telogen effluvium, although the authors emphasize the need for larger, placebo-controlled trials to confirm these promising results.
June 2025 in “Frontiers in Bioengineering and Biotechnology” In this study, the researchers observed that a recombinant human collagen complex with nicotinamide promoted hair growth in rat models, increased hair follicle stem cell survival, and enhanced key protein expression, suggesting potential benefits for hair health and loss prevention.
27 citations
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May 2010 in “Dermatologic surgery” This study found that photodynamic therapy with methyl 5-aminolevulinic acid was ineffective for treating alopecia totalis, even with microneedle rolling to enhance drug delivery.
July 2023 in “Clinical, cosmetic and investigational dermatology” In this study, reflectance confocal microscopy was used to diagnose periorificial dermatitis, revealing specific skin changes such as hair follicle dilatation, increased vascular density, and inflammation, which help distinguish it from similar conditions.
26 citations
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December 2019 in “Indian Journal of Dermatology, Venereology and Leprology” This study found that platelet-rich plasma combined with topical minoxidil was more effective in increasing hair density for male-type baldness than either treatment alone.
January 2012 in “Yearbook of Dermatology and Dermatologic Surgery” Taking finasteride daily can effectively and safely increase hair density and thickness for women with hair loss.
June 2024 in “Nature Cell and Science” In this research, experienced clinicians noted inconsistency in the reproducibility of the commonly used Hamilton-Ludwig scales for assessing pattern hair loss severity in photographic assessments, leading to the proposal of a new 5-point scale for staging female hair loss.
13 citations
,
June 2020 in “Journal of Dermatological Treatment” This review discusses the pharmacology and safety of topical finasteride for treating androgenetic alopecia and female pattern hair loss, noting positive results but reporting no new clinical findings.
31 citations
,
January 2017 in “Advances in Experimental Medicine and Biology” This review discusses the negative health impacts of testosterone deficiency and the potential adverse effects of 5α-reductase inhibitors, emphasizing the need for patient-physician discussions regarding these treatments.
14 citations
,
April 2022 in “Climacteric” This review discusses the impact of HRT on menopausal skin and hair symptoms and argues that potential benefits should be part of informed decision-making for managing menopause.
July 2024 in “Anais Brasileiros de Dermatologia” PRP injections can increase hair density in people with androgenic alopecia.
This article proposes a methodology for selecting hair extension technology that aligns with natural hair structure and aesthetic goals, suggesting the best results are achieved by matching technique to hair's mechanical capacity.
June 2025 in “International Journal of Research in Dermatology” This study found that Indulekha Bringha Ayurvedic hair oil significantly increased hair density and reduced hair fall in healthy Indian adults experiencing hair loss, with results evident from the first month of use and enhancing over a four-month treatment period.
January 2026 in “Medicine” This study found that elevated LDL-C levels increased the risk of developing androgenic alopecia, whereas HDL-C levels showed no significant effect.
January 2023 in “Mansoura Medical Journal” This study suggests that increased levels of ischemia-modified albumin, indicating oxidative stress, are associated with greater severity of acne vulgaris.
1 citations
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April 2013 in “Journal of dermatological treatment” This study found that cast application for at least 4 weeks significantly increased hair length, diameter, and density on the casted leg compared to the non-casted leg.