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This study found that ethanolic and petroleum ether extracts of Cuscuta reflexa, as well as an isolate from these extracts, improved hair growth and follicle characteristics in androgen-induced alopecia in rats.

This study found that 6-gingerol, a component of ginger, suppresses hair growth rather than promoting it, both in vitro and in vivo, suggesting potential use in hair removal treatments.

This study observed that primary hair follicles in Liaoning Cashmere goats had broader hair bulb widths compared to secondary follicles, with the difference diminishing during the anagen phase of hair follicle development.

This study found that Rumex japonicus Houtt. root extract promoted hair growth by enhancing cell proliferation and preventing apoptosis in human dermal papilla cells and HaCaT cells, as well as in a mouse model.

Ashwagandha nanoparticles help hair grow by increasing a growth factor.

This study found that the herbal extract HX109 promoted hair growth in mice by increasing cell viability and enhancing hair regrowth, with the effects increasing as doses rose.

This study found that the season of the year does not significantly affect the hair regrowth rate or the telogen: anagen ratio in indoor-housed Labrador retrievers.

In this study, the researchers found that the ethyl acetate fraction of Sansevieria trifasciata P. (20%) was just as effective as minoxidil (2%) in promoting hair growth in male rabbits, with notable results in hair follicle proliferation and a favorable anagen to telogen ratio.

In this open-label study, the researchers observed that using Kerascalp hair serum daily for 90 days improved hair thickness, density, and strength while reducing hair loss in subjects with mild to moderate androgenetic alopecia, with benefits persisting even after discontinuation.

This study found that low concentrations of CBD promoted hair follicle growth, while higher concentrations induced hair follicle regression and increased cell death in an experimental setting.

This study found that petroleum ether extracts of Citrullus colocynthis reduced hair growth initiation time and advanced more hair follicles to the anagen phase in albino rats compared to untreated controls and minoxidil.

Hair diameter diversity is a key sign for diagnosing and managing male pattern baldness.

This study found that using 'moha: 5-in-1' hair oil for 8 weeks significantly reduced hair fall, increased hair growth rate and thickness, and decreased scalp dandruff among healthy adults with alopecia, with no adverse effects reported.

In a study on hair loss treatment, researchers found that a serum containing Cinchona succirubra extract and caffeine improved hair density and reduced hair loss in individuals with acute telogen effluvium after 16 weeks of use, with significant improvements observable after just 4 weeks.

In this study, water-soluble recombinant keratins, specifically RK81, were developed and used in microneedles to investigate their effect on hair growth, discovering that more than 40% of the hair follicles responded, demonstrating the potential for hair growth promotion.

This trial found that intradermal injections of the Hair Stimulating Complex were well-tolerated and effectively stimulated hair growth and prevented hair loss in male pattern baldness participants over 18 weeks.

This review outlines the classification, histopathologic presentation, and pathogenetic concepts of scarring and nonscarring alopecias, reporting no new clinical results and emphasizing the need for clinicopathologic correlation.

This study reports that scalp biopsies in white adults usually have 16.5 hair follicles, primarily in the anagen phase, with male samples showing fewer follicular units but more fibrous tracts in certain areas.

This study examined 15 female patients with hypothyroidism to investigate the characterization of their alopecia and ruled out other causes, using medical histories, and clinical, trichoscopic, and histologic findings.

This case report describes a 27-year-old woman with a family history of hair thinning and a 6-year history of alopecia on the scalp.

This study found that permanent alopecia can occur after certain chemotherapy treatments and presents as nonscarring hair loss similar to androgenetic alopecia, with specific histological features that could be misdiagnosed without proper clinicopathological correlation.

This study found that finasteride increases anagen hair growth in men with androgenetic alopecia.

This study observed that during the rat hair cycle, DNA synthesis in dermal cells peaks during a specific growth stage, suggesting a coordinated metabolic activity with potential implications for alopecia areata research.

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.

In this study, Salvia plebeia extract promoted hair growth by enhancing proliferation and anti-apoptotic effects in human dermal papilla cells and increased hair growth in treated mice.

This study found that hydroxysafflor yellow A-rich Carthamus tinctorius extract promoted hair growth and gene expression linked to hair proliferation in both cell cultures and mouse models.

In this study, oral administration of Crataegus pinnatifida extract was associated with hair growth promotion in mice by inducing anagen phase and enhancing cell signaling related to hair follicle development.

In this study, BP201, derived from porcine lung phospholipids, promoted hair growth in mice, especially when combined with minoxidil, and increased hair follicle numbers and dermal papilla cell proliferation.

In this study, the FIII micro emulsion formulation of virgin coconut oil and rice bran oil showed the best results for hair growth, increasing rabbit hair length by 1.26 cm in 18 days.

This study found that epidermal growth factor may stimulate the growth of hair follicle epithelium and potentially accelerate the transition from anagen to catagen phase in cultured human hair follicles.