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This study observed that a topical serum containing Silybum marianum extract, manganese PCA, and Lespedeza capitata extract enhanced hair follicle growth and hair shaft elongation, while prolonging the anagen phase in an ex vivo human scalp skin model, suggesting potential benefits for hair loss treatment.

This review discusses the history and challenges of hair follicle regeneration using follicular fragments and dissociated cells, without presenting new clinical results.

This study developed a three-dimensional model for studying hair follicle development, showing that immortalized dermal papilla cells retain certain differentiation activities and can induce tubule formation in vitro.

Activating cAMP and ATP improves hair growth and strength.

This study found that hair transplant surgeons can use a new model to predict the number and distribution of follicular units in donor scalp areas based on patient hair density.

This study found that when human hair follicles were grafted onto mice, they progressed through dystrophic stages and returned to normal growth, with stem cells aiding in recovery.

This article discusses the role of human scalp hair follicles in neurohormone production and their model potential for studying neuroendocrine signaling, reporting no experimental results.

This study found that dimethylpabamidopropyl laurdimonium tosylate, a quaternary ammonium surfactant, adsorbs onto human scalp hair with kinetic and isotherm behaviors fitting specific models, changing hair fiber wettability from hydrophobic to hydrophilic.

This study found that exosomes from human umbilical cord mesenchymal stem cells reduced hair follicle aging and promoted hair regeneration in models by upregulating COL17A1 through the miR-21-5p/DKK2/Wnt/β-catenin axis, outperforming existing treatments like minoxidil.

This study found that maintaining tension-force balance in a human skin equivalent improved characteristics of skin homeostasis and structure, suggesting potential as an alternative to animal models for studying skin physiology.

In this study, serum from patients with alopecia areata or universalis did not affect hair growth in transplanted scalp skin grafts on nude mice, despite increased deposition of immunoreactants.

This study mapped the development of the human pilosebaceous unit in prenatal scalp skin using multi-modal analysis, finding that epithelial-mesenchymal interactions guide cellular fate and validated tissue-patterning through a hair-bearing skin organoid model.

This study found that a newly developed peptide, FOL-005, significantly inhibited hair growth and counteracted minoxidil's effects in organ-cultured human male scalp skin and mouse models, without apparent toxicity.

In this study, HYDRO DELUXE BIO was reported to show promise for scalp mesotherapy by enhancing angiogenesis and reducing inflammation in an in vitro model.

This review examines preclinical studies on exosome therapy for hair loss and reports no new human clinical findings.

This study found that valproic acid promoted human hair growth by increasing β-catenin levels, suggesting it may be a potential therapeutic option for alopecia.

This study developed a multiscale model to understand human hair fiber mechanics and found that the yield stress decreases linearly with temperature, supported by both simulations and experimental stretching of hair fibers.

This study reported that in male subjects with androgenetic alopecia, there is greater uncertainty in hair growth duration, with regulatory factors in the dermal papilla significantly affecting outcomes.

Farudodstat may effectively treat alopecia areata without harmful side effects.

This study observed that the osteopontin-derived peptide FOL-005 inhibited hair growth in human scalp skin models, contrary to its hair growth promotion in mice, supporting further clinical testing for excessive hair growth treatment.

This study observed that cells from androgen-sensitive areas like the beard and scrotum showed higher androgen receptor levels compared to those from non-balding scalp areas, supporting the role of dermal papilla in follicle growth responses to androgens.

In this meta-analysis, researchers found that melatonin did not affect primary hair follicles or litter size in goats but was positively correlated with secondary follicle growth, suggesting potential relevance for studying hair growth mechanisms and human alopecia.

This study found that dermal papilla cells from balding follicles exhibit distinct growth characteristics compared to non-balding cells, suggesting their potential as a model for understanding androgenetic alopecia.

This study suggests that androgens influence hair follicle behavior via the dermal papilla, using evidence from human and red deer cells with differing androgen responses as models.

This study found that human γδTregs promoted hair regrowth and restored hair follicle immune privilege in a model of alopecia areata, suggesting potential for cell-based therapy in autoimmune diseases.

Minoxidil solution and foam both increase hair growth, but the solution works better than the foam.

This study identifies gene-regulatory networks related to genetic variants in skin and hair diseases, suggesting that dermal papilla cells are crucial in androgenetic alopecia.

Farudodstat may effectively treat alopecia areata without harming hair follicles.

This review discusses the pathobiology of chemotherapy-induced alopecia and highlights challenges in managing it, reporting no new clinical results and emphasizing the need for well-designed preclinical models to develop effective treatments.

This study found that Urticadioica L ethanol extracts enhanced hair growth and reduced catagen transition in human hair follicles in an ex vivo organ culture model.