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This study describes a new tissue culture method that successfully induces outer root sheath cells from hair follicles to differentiate into a multilayered epithelium with characteristics similar to normal interfollicular epidermis.

This study found that adding yeast extract or coconut water to Panax ginseng root hair cultures did not increase ginsenoside levels, though coconut water increased biomass.

This study adapted a method for culturing melanocytes from human hair follicles to horses, successfully creating partially melanotic equine melanocytes, potentially advancing hair follicle biology research across species.

This study suggests that the NGF/TrkA/CREB system plays a crucial role in promoting outer root sheath cell proliferation in cashmere goats, which may aid in marker-assisted breeding.

This study found that direct immunofluorescence of hair is a simple and non-invasive alternative for monitoring pemphigus vulgaris, matching skin biopsy results in the cases observed.

This study suggests that nerve growth factor may support hair follicle growth in Liaoning cashmere goats through pathways involving its receptor, TrkA, particularly during the anagen phase.

This study found that minoxidil sulfate did not enhance hair follicle growth or cell proliferation in isolated human hair follicles at concentrations of 0.1, 1, and 10 μg/ml.

This study produced and characterized four new monoclonal antibodies that specifically recognize differentiation antigens in human hair follicle and epidermal structures.

This study found that hair root sheaths can be accurately typed for erythrocyte acid phosphatase, adenylate kinase, and adenosine deaminase, consistent with blood typing results from the same donors.

The researchers developed a hair serum using rosemary essential oil and ficus bengalensis aerial roots, and successfully evaluated its viscosity, pH, and color.

In this study, rosemary essential oil and banyan aerial roots were used to develop a hair serum aimed at addressing hair fall and dandruff, with evaluations showing successful determination of parameters like viscosity and pH.

This study observed that activating the Wnt/β-catenin pathway enhances hair follicle stem cell proliferation and differentiation, promoting hair growth and wound healing, and demonstrated the potential for outer root sheath transplants to aid skin repair, although challenges remain for clinical application.

Oxytocin from hair cells helps hair growth and stem cell increase.

This study found that Ashwagandha root extract significantly improved skin and hair quality in healthy adults with hair loss or skin conditions over 75 days compared to placebo.

In this study, high-dose Arachis hypogaea root extract significantly reduced prostate weight and markers of glandular hyperplasia in testosterone-induced BPH in mice, with associated changes in inflammatory gene expression and beneficial shifts in gut microbiota.

This study found that women with genetic hair loss experienced significant improvements in hair density, count, and thickness when treated with both Rehmannia root extract and microneedling therapy, with the combination showing the greatest benefits compared to each treatment alone.

This review suggests that the inner root sheath of human hair follicles may have broader regulatory roles beyond structural support, potentially impacting processes like folliculogenesis, anagen phase regulation, and immunomodulation.

In this study, researchers developed a herbal hair serum using Alkanna tinctoria root extract and other natural ingredients, demonstrating promising results in promoting hair growth, enhancing manageability, and minimizing side effects, making it a safe and effective alternative to chemical hair products.

The study found that sonication washing of hair roots with fewer than 50 visible nuclei could reduce the number of nuclei available for DNA extraction and STR typing, suggesting that for laboratories focused on nuDNA analysis, a gentler washing method might be adequate.

This study found that 18-β-Glycyrrhetinic acid, a licorice component, stimulated human hair follicle cell proliferation, inhibited testosterone 5α-reductase, and suppressed TGF-β1, suggesting potential for treating androgenetic alopecia by promoting hair growth and prolonging the anagen phase.

This study found that in human hair bulbs, telomerase is present mainly in the nuclei of cells undergoing proliferation, particularly in the matrix epithelium during the anagen phase, and sparsely in the outer root sheath during late catagen and telogen phases.

This report describes a case where dermoscopy of shed hair helped diagnose post-COVID acute telogen effluvium by revealing depigmented club-shaped bulbs, highlighting its potential as a noninvasive diagnostic tool.

This research identified a genetic mutation in Brachypodium distachyon that initially allows root hair initiation but fails to elongate them, while also affecting root growth and nitrate sensitivity; the mutation is linked to a previously uncharacterized cyclin-dependent kinase-like gene.

This study found that JAK1 and JAK2 inhibitors increase β-catenin activity in human hair follicle cells, suggesting an additional therapeutic mechanism for treating severe alopecia areata.

In this study, a new emulsion containing CBD and ginger root extract significantly reduced symptoms of dry and eczema-prone skin, such as erythema and itching, in a clinical trial.

This study revealed that nestin-expressing progenitor cells capable of becoming ORS keratinocytes are present during both hair follicle development and in adult hair follicles.

This study found that nestin-expressing unipotent progenitor cells capable of differentiating into outer root sheath keratinocytes are present during hair follicle development and in adult hair follicles.

This study reported that a Maca hydrolysate extract protected human hair follicles from oxidative and inflammatory stress and promoted hair growth in ex vivo models, suggesting a potential use for managing hair loss.

In this study, the researchers introduced a mutation in mice to mimic Olmsted syndrome and found that the mutation caused hair loss due to impaired keratinocyte differentiation and depletion of hair follicle stem cells.

This study found that anisotropic osmolyte solutions may improve hair follicle turnover and condition in both in vitro and in silico models, as well as in human volunteers with hair disorders.