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This study found that l-carnitine stimulated hair growth in vitro by promoting proliferation and reducing apoptosis in human scalp hair follicles, suggesting potential as a treatment for hair loss.

This study suggests that icariin promotes hair follicle growth in mice by enhancing IGF-1 expression in dermal papilla cells.

This study found that topical cilostazol promotes hair growth, enhances hair follicle activities, and may serve as a potential treatment for alopecia.

In this study, topical application of Tectona grandis seed extracts on albino mice significantly accelerated hair growth initiation time and increased the percentage of hair follicles in the anagenic phase compared to the standard minoxidil treatment.

This study in Italy observed telogen effluvium and trichodynia as common hair-related complications following COVID-19 infection, raising questions about underlying hair follicle biology and potential receptor involvement.

This study analyzed gene expression changes during the autumn coat color change in mountain hares and found conserved gene regulation with snowshoe hares, highlighting its role in seasonal camouflage adaptation.

This review examines the interaction between hedgehog and Wnt/β-catenin signalling in hair follicles and basal cell carcinoma, linking Hh pathway inhibition to both tumor regression and alopecia.

This study found that Stat3 removal in keratinocytes of mice impairs healing and disrupts the normal hair cycle, leading to skin ulcers and hair loss as they age.

This study found that micro-current electrical stimulation may promote hair growth in human hair follicle-derived papilla cells and a mice model by enhancing cell proliferation, migration, and activating key growth pathways.

In this study, sildenafil was found to enhance human dermal papilla cell proliferation and promote hair growth in mice, suggesting potential use in alopecia treatment.

This study found that Keratin 26 is expressed differently in hair follicle phases, particularly during catagen and telogen, influencing cashmere growth and interacting antagonistically with the BMP signaling pathway.

TRPM5 is crucial for maintaining hair growth.

This study found that a cedrol nanoemulsion improved hair growth and bioavailability compared to an ointment, demonstrating enhanced efficacy in vitro and in vivo.

This study observed that adipose-derived stem cells modified with trichogenic factors have similar properties to dermal papilla cells and show enhanced hair regeneration potential compared to unmodified adipose-derived stem cells.

In this study, minoxidil and human platelet lysate affected gene expression related to hair growth signaling pathways in mouse hair follicle cells.

This study found that 15-dPGJ2 promotes apoptosis in human follicular keratinocytes, suggesting its potential role in developing hair loss prevention treatments through DP2 antagonism.

This study found that red ginseng oil promoted hair growth and protected against UVC-induced skin damage in mouse models.

This study found that intradermal injection of cholesterol-modified siRNA targeting FGF5 or FGF18, or topical application of FGF18-targeted siRNA, effectively influenced hair follicle cycles in mice, suggesting potential benefits for alopecia management.

This study found that stress hormones, particularly CRF, can inhibit hair growth and induce hair loss by affecting human dermal papilla cells and hair follicles, suggesting a functional HPA axis in these cells.

In this study, a subcutaneous injection of recombinant RSPO1 was found to activate hair follicle stem cells and enhance hair regeneration in mice by stimulating the Wnt/β-catenin signaling pathway, suggesting its potential as a treatment for hair loss.

This study found that a dissolvable microneedle device delivering rapamycin and epigallocatechin gallate nanoparticles significantly enhanced hair regrowth in C57BL/6 mice within 7 days, demonstrating increased hair shaft growth and follicle density with minimal inflammation compared to untreated mice.

This study suggests that CGE may enhance hair growth by activating β-catenin signaling pathways in human hair dermal papilla cells and promoting the anagen growth phase in mice.

This study found that high-charge-density cassia HPTC improves deposition efficiency and conditioning benefits in shampoos compared to quaternized guar, suggesting its potential as an alternative or adjunct conditioning agent.

In this study, ob/ob mice were found to have a prolonged telogen hair cycle phase from 10 to 24 weeks, suggesting their potential as a model for studying telogen effluvium.

In this study, 0.5% timosaponin BII from Anemarrhena asphodeloides promoted hair growth in C57BL/6 male mice, showing effects comparable to 2% minoxidil.

This case report suggests that topical EGF may stimulate new hair growth around healing wounds, observed in a 29-year-old woman treated for a linear abrasion.

In this study, researchers found that inhibiting inducible nitric oxide synthase (iNOS) promoted hair growth in diabetic mice, suggesting iNOS-derived nitric oxide contributes to hair loss under diabetic inflammatory conditions.

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 topical curcumin can initiate hair growth in mice by acting as a JAK inhibitor but could not fully reverse alopecia areata, likely due to insufficient penetration to deeper skin layers.

This study reports that the peptide GPIGS, found in Bacillus sp. M18 conditioned medium, may promote hair growth through the PI-3K/Akt pathway and accelerate hair regrowth in mice.