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This review examines the potential of stem cells and their derived products, such as exosomes and conditioned media, in improving burn wound healing but presents no new clinical data.

This review discusses the cell biological characteristics of the outer root sheath of normal human hair follicles and highlights some similarities and differences with trichilemmal tumors, but reports no new results.

This study found that a newly developed ultrasound-responsive hydrogel, incorporating ADSC-derived exosome nanobubbles, substantially improved wound healing in rats by enhancing skin closure, re-epithelialization, and hair follicle regeneration, while potentially reducing scar formation.

This study found that administering tolerogenic dendritic cell-conditioned medium to dihydrotestosterone-treated mice promoted hair regrowth by modulating the follicular microenvironment, reducing pro-inflammatory cytokines, and activating key signaling pathways, highlighting its potential as a treatment for androgenetic alopecia.

This study found that topical mesenchymal stem cell conditioned medium improved skin structure by increasing collagen fiber density, hair follicles, and blood vessel number in a mouse model of skin aging.

This study found that gelatin–polycaprolactone/silk fibroin composite membranes with line micropatterns enhanced wound healing in rats by promoting cell alignment, angiogenesis, and increased α-SMA production.

This study found that an acellular dermal matrix derived from tilapia skin significantly accelerated wound healing and improved tissue regeneration quality in mouse and pig models compared to a commercial porcine-derived matrix, suggesting its potential as a safe, cost-effective bioscaffold for skin repair.

This study found that implanting hair-follicle-associated pluripotent stem cell sheets facilitated wound healing and early macrophage activity while reducing inflammation in a diabetic mouse model, suggesting clinical potential for difficult-to-heal diabetic ulcers.

This study demonstrated that VD3 significantly enhanced the proliferation and differentiation of epidermal stem cells in a murine skin defect model, leading to improved wound healing, potentially through activation of the PI3K signaling pathway.

In this study, a chronotherapeutic bilayer dressing system showed enhanced diabetic wound healing in a model by reducing inflammation through polyphenols and promoting repair with sustained PDGF-BB delivery, leading to faster re-epithelialization and hair follicle regeneration.

This study found that kaempferol increased the proliferation potential of basal epidermal cells in three-dimensional skin models by enhancing integrin expression and altering cell morphology.

This study reported that a newly developed hydrogel composed of recombinant type I collagen and chitosan, incorporating a metal–polyphenol structure, demonstrated strong mechanical and healing properties, effectively promoting wound healing in a full-thickness skin defect model.

This study suggests that certain electrical settings may enhance hair growth by stimulating dermal papilla cell proliferation and increasing gene expression related to hair growth in vitro and in rabbit skin.

This research studied the effect of local testosterone propionate applications on rabbit epidermal mitotic activity but reports no new results.

In this study, researchers observed that human sebaceous glands can regenerate in a mouse model using transplanted human skin, potentially offering a tool to study sebaceous gland biology and regeneration.

This study found that manipulating both gene expression and matrix stiffness in mice can alter hair regeneration after skin wounding, highlighting key factors in regenerative biology.

This study found that electrical epilation in organ-cultured human scalp skin perturbs hair follicles by causing inflammation, impairing melanin production, and possibly inhibiting post-epilation hair re-growth.

Dermal exosomes with miR-218-5p boost hair growth by controlling β-catenin signaling.

This study found that overexpressing the 14-3-3σ protein in transgenic mice reduced keratinocyte proliferation and migration, leading to thinner epidermis and fewer hair follicles due to IGF-1 pathway inhibition.

This study found that using cultured mesenchymal stem cells from mouse whisker hair follicle outer root sheath in wound healing reduced inflammation, accelerated closure, and resulted in less hypertrophic scarring in mice.

This study found that platelet-rich plasma injections promote hair growth and are safe and effective for treating androgenetic alopecia.

This study found that glycyrrhizic acid may reduce the cutaneous toxicity caused by Osimertinib in mice, suggesting its potential as an adjunct treatment in clinical settings.

In this study, testosterone-induced alopecia in male rats led to significant thinning and follicular degeneration, but treatment with adipose-derived stromal vascular fraction cells markedly improved these histological changes, suggesting a potential role in hair follicle regeneration.

This study explored hair follicle research by co-culturing dermal papilla cells, keratinocytes, and endothelial cells in spheroids, finding elevated hair growth factor expression and potential for creating skin equivalents with hair through a "hair-on-a-chip" approach.

In this study, researchers found that neonate hairs have a distinct microstructure with no medulla and smaller hair follicles compared to adult hairs.

This chapter reviews the potential of adipose-derived stem cells for skin aging and hair loss treatments but reports no new experimental results; the authors highlight these stem cells as a promising regenerative resource.

This review outlines recent advances in using stem cells for skin repair and regeneration, suggesting potential for complete skin and appendage regeneration after severe burns, but presents no new clinical findings.

In this animal study, topical VEGF gel increased hair growth and thickness in Mesocricetus auratus, although it was not completely inert, highlighting the need for further toxicity confirmation.

This study observed that while PRP therapy increased inflammation and fibrosis in photoaged skin, ADSCs therapy showed promising antiaging effects by promoting elastin and fibrillin formation and remodeling the dermis.

This review discusses the mechanisms of skin aging, highlighting the roles of stem/progenitor cells, genetic and environmental factors, and suggests potential for cell-based therapies, but reports no new experimental findings.