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This review outlines various clinical methods for assessing ageing skin and discusses their application in supporting the efficacy claims of anti-ageing treatments, but it reports no new clinical results.

In this study, zinc chloride was found to be severely irritant to the skin in rabbit, guinea-pig, and mouse models, while zinc oxide, zinc sulphate, zinc pyrithione, and zinc undecylenate showed minimal to no irritancy.

This study demonstrated that cryogelation of human hair keratin allows the development of 3D scaffolds with tunable properties, supporting cell adhesion and proliferation for potential biomedical applications.

Advancements in biomaterials and nanotechnology are improving medical applications like hair growth, bone regeneration, and cancer treatment.

This review summarizes recent advances in understanding the molecular mechanisms of hair follicle formation and discusses potential future clinical applications for treating hair loss and skin tumors, but it reports no new clinical results.

This review discusses recent advances in hair follicle research, highlighting therapeutic and cosmetic applications, but reports no new study results.

This review discusses recent advances in using extracellular vesicles as a potential treatment for alopecia and highlights ongoing challenges in their clinical application and mass production; no new clinical results are reported.

In this study, it was observed that topical application of N,N-Dimethylglycine Sodium Salt significantly increased skin microcirculation and blood flow in human subjects, suggesting potential benefits for skin health and conditions like dermatitis.

This review examines the potential uses of platelet-rich plasma in dermatology, noting its growing therapeutic applications, but highlights the need for more standardized procedures and larger studies to confirm its effects.

This study found that nanoemulsions of different sizes vary in their ability to penetrate skin layers, with smaller sizes aiding transdermal delivery and potential applications in transcutaneous immunization.

This study found that bioactive extracts from goat placenta, particularly when delivered via dissolving microneedles, enhanced fibroblast proliferation and skin regeneration without being toxic to skin cells, suggesting a promising dermal application for improving skin health.

This study found that factors released by mesenchymal stromal cells can enhance the proliferation and migration of keratinocytes in vitro, which may contribute to improved understanding of their role in wound healing and potential applications in dermal regeneration therapies.

This review discusses the diverse roles and characteristics of epidermal and dermal stem cells in skin regeneration and aging, highlighting their potential applications in regenerative medicine and reports no new clinical results.

This study found that IMT-P8, a novel cell-penetrating peptide, effectively facilitated the dermal delivery of proteins and peptides in mouse skin and cell lines, suggesting potential for topical applications in cosmetics and skin diseases.

This review discusses autologous dermis-derived stem cells and their potential in regenerative medicine, summarizing current literature on their niches, characteristics, and applications, but it reports no new experimental results.

This study explored the dermal stem cell niche of equine hair follicles, revealing typical fibroblast morphology and confirming the expression of standard stem cell markers comparable to other species.

In this study, CRH receptor antagonists from Pulsatilla chinensis reversed stress hormone-induced changes in hair follicles and dermal papilla cells in a lab setting, suggesting potential pharmaceutical and cosmetic applications for treating stress-related hair loss.

This review discusses recent advances in stimuli-responsive nanoformulations for CRISPR-Cas9 delivery, highlighting their design rationales and potential biomedical applications, but reports no new experimental results.

This study found that a mutant form of the FGF5s protein, FGF5sC93S, significantly increased hair count after 24 weeks of application on human scalps, suggesting its potential as a hair growth treatment.

This review discusses the similarities between myotonic dystrophy and aging, highlighting the role of cellular senescence in its pathophysiology, and reports no new clinical findings; the authors note potential anti-aging therapy applications.

This study demonstrated the potential of epithelial cell scaffolds fabricated with various materials for effective hair regeneration, highlighting their promising application in tissue engineering for alopecia treatment.

The book discussed in this abstract is a comprehensive guide to hair analysis, detailing the latest methods and applications across various fields such as toxicology and drug monitoring, designed for both newcomers and experts in the field.

This study found that goat placenta extract, when combined with PEGylated liposomes and microspicule gel, significantly promoted hair regrowth in patients experiencing hair loss due to chemotherapy by enhancing hair cell proliferation without causing skin irritation over a 12-week application period.

This review highlights that various components of "skin boosters," such as exosomes and hyaluronic acid, may have potential applications beyond aesthetics, acting as adjunct therapies for improving skin integrity and promoting tissue regeneration, though more research is needed to support their use as primary treatments.

This study found that the M5 isolation method for human dermal papilla cells significantly improved attachment efficiency, proliferative capacity, and trichogenic potential, providing an optimized strategy for scalable manufacturing in hair regeneration therapies for conditions like alopecia.

This study suggests that extracellular vesicles derived from Saccharomyces cerevisiae may enhance hair follicle-related cellular processes, highlighting their potential for biomedical and cosmetic applications.

This review examined 40 studies on exosome-based therapies for alopecia areata, reporting significant hair regrowth and improvements in hair count, length, and thickness, but highlighted the need for standardized methodologies and robust RCTs before clinical application.

This study highlights exosome-based therapies as promising treatments for androgenetic alopecia, detailing protocol development, quality control measures, and clinical application examples, with mesenchymal stem cell-derived exosomes improving hair density in a case study without adverse effects.

This study observed that a combination of sinapic acid and glabridin from Zhimo herbal extract improved hair growth and reduced oxidative stress in a DHT-induced model of androgenetic alopecia in mice by preventing ferroptosis and stabilizing β-Catenin, offering potential application for AGA treatment.

This study reported that in animal studies of androgenetic alopecia, a biodegradable microneedle patch releasing glutamic acid promoted hair regeneration more effectively than daily minoxidil, with higher hair follicle counts and less frequent dosing, showing the potential for clinical application.