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This literature review highlights a potential but uncertain link between GLP-1 receptor agonist therapy for type 2 diabetes and obesity and hair loss, with variations among different medications.

This study found that taurine dietary supplementation could reduce lipid metabolism, enhance antioxidant capacity, and improve hormone levels in Angora rabbits, with 0.2% taurine increasing wool production.

In this study, topical tofacitinib significantly promoted hair regrowth in mice, outpacing both minoxidil and controls over 21 days, with findings suggesting increased VEGF levels and decreased inflammation as possible mechanisms.

In this study, researchers found that Ganoderma Lucidum extract and Ganoderic acid A significantly improved hair follicle growth and delayed hair loss progression, based on in vitro, ex vivo, and 24-week human clinical trials, suggesting potential as a therapeutic for androgenetic alopecia.

In this study, six-week-old male mice showed significantly increased hair regrowth rates and higher expression of hair growth-related factors when treated for 22 days with Lactobacillus strains and fermented Korean berry, suggesting these could be potential promoters of hair growth via gut microbiome regulation.

This study found that treating sheep hair follicles with IGFⅠ and EGF stimulated growth, with EGF also accelerating cell differentiation and altering the growth cycle.

This study found that combining IGF-1 and EGF in specific concentrations significantly stimulated hair follicle growth in vitro for primary follicles from Liaoning cashmere goats.

This article discusses the role of growth hormone, insulin, and IGF-1 in acne development and highlights how diet and syndromic evidence support their involvement, but presents no new clinical findings.

This review explores the molecular controls of hair follicle cycling and highlights the challenge of developing effective treatments for common hair disorders without providing new clinical results.

This review discusses how Western diet may contribute to acne vulgaris through insulin signaling and metabolomic changes, promoting a dietary approach for management, but reports no new experimental results.

This study demonstrated that keratin extract can stimulate hair growth by inducing the anagen phase in telogenic mice.

This investigation found that certain supplements, particularly whey protein isolate, growth hormones, and anabolic steroids, can negatively impact hair loss by affecting biochemical pathways.

This study found that treatment with mesenchymal stem cell extracellular vesicles enhanced hair growth in mice and stimulated dermal papilla cell activity and growth factor production in vitro.

Raspberry ketone may help grow hair and improve skin elasticity.

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

In this study, phenol-enriched olive mill wastewater extract positively influenced hair growth in vitro by promoting human dermal papilla cell proliferation, increasing insulin-like growth factor-1 secretion, and reducing reactive oxygen species, suggesting it may be beneficial for hair care.

This review explores the complex endocrine functions of human skin and its role as a peripheral endocrine organ, but reports no new clinical results.

This study found that Sophora flavescens extract may promote hair growth in mice by inducing earlier hair cycle changes and regulating growth factors in dermal papilla cells.

This study found that minoxidil nanoparticles increased drug delivery to hair follicles and improved hair growth more effectively in mice than conventional minoxidil formulations.

This review explores various hormone influences on hair growth and loss beyond androgens, noting that clinical hormone therapies for aging may impact hair due to associated hormone level reductions, but reports no new empirical results.

This review explores the potential impact of hormonal changes during aging on benign prostate hyperplasia-related urinary symptoms and metabolic syndrome, highlighting the hypothesis of a male PCOS-equivalent but reports no new clinical results.

This study observed that human hair follicles with a completely destroyed bulb can regenerate after being grafted onto immunodeficient mice, entering a shortened dystrophic telogen followed by anagen phase.

This study found that Nelumbinis Semen extract may promote hair growth and reduce hair loss by increasing VEGF and IGF-1 expression and decreasing TGF-β1 in human dermal papilla cells and mice.

This review found that hormonal therapies, including FDA-approved combined oral contraceptive pills and spironolactone, are effective and well-tolerated treatments for acne vulgaris in adolescents with or without endocrine disorders, providing alternative options to antibiotics.

In this study, androgens were found to stimulate keratinocyte growth in co-culture with beard dermal papilla cells but inhibit it in co-culture with balding frontal scalp DPCs, mediated by TGF-beta1.

This study found that applying deer antler extract to rat skin wounds enhanced hair growth and increased IGF-I expression, suggesting potential use in hair growth products.

This study found that aminoguanidine induced increased VEGF mRNA expression in stored hair follicle micrografts, suggesting potential for developing growth-promoting storage solutions in hair restoration surgery.

This study found that the vitamin D receptor plays a crucial role in hair follicle development in cashmere goats by regulating signaling pathways in dermal papilla cells.

This preliminary study found that Melandrium firmum extract may promote hair growth and inhibit 5α-reductase, suggesting potential as a candidate for treating androgenetic alopecia.

This study suggests that beard dermal papilla cells may produce androgen-dependent growth factors that stimulate keratinocyte proliferation, while frontal scalp cells can have an inhibitory effect mediated by TGF-β1.