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This chapter reviews common cosmetic dermatology techniques but presents no new findings; it discusses treatments like emollients and laser therapy for conditions like photoaged skin and acne scarring.

In this review, researchers discussed various novel drug delivery systems, including lipid nanocarriers and polymeric nanoparticles, that may enhance treatment for alopecia by improving drug localization in hair follicles and reducing systemic exposure, potentially offering better outcomes than conventional treatments.

This study found that 10% Citrus aurantium peel oil significantly promoted hair growth in ICR mice by reducing the time needed for hair growth initiation and completion, and by increasing hair length, follicle diameter, and count, showing potential as a hair growth agent.

This case report highlights a rare instance of filler-induced alopecia in a young woman following hyaluronic acid filler injections, showing successful hair regrowth and scar resolution through multidisciplinary treatment including hyaluronidase and other therapies, emphasizing early recognition and intervention.

In this study, Nigella sativa oil was found to promote dermal papilla cell proliferation and may reduce oxidative stress, suggesting its potential as a hair loss intervention.

This study found that low molecular weight collagen peptide from fish may promote hair growth in both human cells and mice by activating the Wnt/β-catenin signaling pathway.

PRP may help with hair loss and improve hair quality with few side effects, but more research is needed.

This study observed that long-term laser hair removal in women may alter hair follicle structures and stem cell interactions, with dermal fibrosis potentially influencing hair regrowth prevention.

This research observed that hairless guinea pig dermal fibroblasts were more sensitive to a toxic exposure than human dermal fibroblasts, suggesting that guinea pigs might serve as an intermediate model for translating in vitro findings to whole organisms.

This paper introduces the Follicular Unit Extraction procedure and its accompanying FOX Test, finding that 60% of tested patients were suitable candidates for this minimally invasive hair transplantation method.

This review examines the literature on the molecular and cellular makeup of the hair follicle niche and how it influences stem cell behavior during hair regeneration, but does not provide new experimental results.

This study found that coculturing human hair follicle keratinocyte stem cells with dermal papilla cells increased expression of the hair-specific keratin 6hf gene, which requires β-catenin/lef-1 signaling for hair differentiation.

This review highlights various methods of stem cell communication that reflect the unique organization and function of different tissues and reports no new 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.

Vitamin D3 affects cell differentiation in specific skin areas.

This article reviews factors affecting follicular unit extraction, emphasizing the need to tailor procedures to individual patient characteristics, but reports no new experimental findings.

This study demonstrates that transfected epidermal stem cells using a novel 3D transfection system significantly enhanced wound healing and may serve as an effective therapeutic agent and gene delivery method for wound treatment.

This review discusses hydrogel-forming microneedles for non-invasive drug delivery in dermatology and reports no new clinical results, emphasizing their promise in improving treatment adherence and patient comfort.

This study found that CXCL12+ fibroblast subsets in mouse skin play a critical role in recruiting neutrophils and defending against S. aureus infection, with similar fibroblast activity observed in human psoriatic skin.

This research discusses a novel imaging approach in live mice to study stem cell and niche interactions in tissue homeostasis and reports no new results.

This study found that Undariopsis peterseniana extract may promote hair growth by activating specific cellular pathways, suggesting potential for treating alopecia.

This study confirmed that the novel solid lipid microparticle formulation of adapalene demonstrated follicular penetration potential and targeted particle erosion in sebum in in vitro tests.

This review explores recent insights into how intrinsic gene oscillations and molecular interactions in hair follicle stem cells contribute to their regenerative potential, with potential implications for regenerative medicine, but reports no new clinical results.

This study suggests that the hydrogel nanoparticle formulation of hair growth-promoting compounds may enhance hair follicle penetration and induce hair growth in tested models, demonstrating its potential as a hair growth treatment.

This study identifies a likely pathogenic homozygous missense variant in the AEBP1 gene in a patient with symptoms of classical Ehlers-Danlos syndrome, suggesting new perspectives for EDS classification and research.

This study found that Sargassum muticum extract and apo-9′-fucoxanthinone promoted hair growth in rat and mouse models by increasing dermal papilla cell proliferation and activating certain signaling pathways.

This study found that neural stem cell extract enhanced hair growth in mice and cells by stimulating hair follicle niches and activating signaling pathways like TGF-β and BMP.

This paper introduces Follicular Unit Extraction and reports the FOX Test can identify suitable candidates, with about 25% of patients being ideal and 35% being good candidates for the procedure.

This symposium discussed why regenerative capacity varies among species and diminishes with age, exploring how these insights could inform regenerative medicine approaches, without presenting new experimental results.

This study examined the effects of WNT10B on dermal papilla cells in vitro, finding that it alters gene expression, decreases protein synthesis, and upregulates a specific signaling pathway, potentially influencing hair follicle morphogenesis.