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This review focuses on the roles of amino acids, peptides, and proteins in cosmetics, highlighting their importance in skin health and their potential for development in personal care products due to their unique properties and biocompatibility.

The skin protects the body, regulates temperature, senses touch, and makes vitamin D.

This study used multiphoton microscopy to successfully visualize rabbit skin microstructure, highlighting its noninvasive potential for future skin research related to diseases and wound healing.

New materials and methods could improve skin healing and reduce scarring.

This narrative review explores how psychological stress may contribute to premature skin aging by affecting dermal collagen and elastin remodeling through neuroendocrine, molecular, and cellular pathways, highlighting potential therapeutic targets to preserve skin structure and function.

Cosmetic procedures can improve skin appearance and boost confidence.

This study found that Pomiferin demonstrated potent stimulation of extracellular matrix proteins in human dermal fibroblasts and hair follicles, suggesting its potential as an ingredient in skin and scalp treatments.

This review outlines the classification, histopathologic presentation, and pathogenetic concepts of scarring and nonscarring alopecias, reporting no new clinical results and emphasizing the need for clinicopathologic correlation.

This study suggests that age-related changes in skin elasticity reduce its stability against wrinkling, and anti-aging strategies should focus on addressing elastic mismatches between skin layers.

In this study, researchers reported that oral isotretinoin effectively treated facial papules in frontal fibrosing alopecia, with histopathologic findings suggesting the involvement of elastic fibers and sebaceous glands in papule formation beyond perifollicular inflammation.

This study found that treating hair with 1 M sodium hydroxide increases its self-friction coefficient, suggesting potential applications in forming fine frictional fibers for medical uses.

This study observed that the biophysical properties of hair in Caucasian females with brown hair significantly change with age, and smoking or being overweight was linked to smaller hair cross-sectional areas.

In this study, higher expression levels of aromatase and steroidogenic acute regulatory protein were correlated with increased estrogen synthesis and fewer hair follicles in human skin, suggesting a link to elastic fiber formation and hair growth.

This study found that the systemic wrinkled skin phenotype in Xiang pigs involves gene expression changes and genetic variations associated with oxidative stress and extracellular matrix components, resembling features seen in Shar-Pei dogs.

Skin aging reflects overall body aging and can indicate internal health conditions.

This review outlines the various processes activated by the peptide GHK-Cu in tissue remodeling and reports improvements in skin and wound healing but notes a need for further study to fully understand these mechanisms.

This review discusses the role of the circadian clock in skin functions such as cell proliferation and UV protection and reports no new results; the authors note its potential in studying immune regulation and seasonal behaviors.

This review provides an overview of Hox genes, focusing on their evolutionary history, genomic organization, and roles in development, but reports no new study results.

In this study, researchers found that exposure to PM10 significantly increased inflammation and impaired collagen synthesis in human dermal fibroblasts, suggesting PM10 contributes to skin aging through these mechanisms.

This review summarizes the current genetic research on alopecia areata, including potential new therapeutic strategies, but reports no new clinical findings.

This article explains the structure and multifunctional roles of the human skin, including its protective, regulatory, and sensory functions, but does not report new research findings.

This review provides a practical approach to diagnosing pseudopelade of Brocq and updates on treatment options but reports no new clinical results.

This article explains that skin microneedling promotes skin regeneration by creating microinjuries, which stimulate collagen and elastin production, making it effective for treating various skin issues with high effectiveness, limited side effects, and a short recovery time.

This review explores the mechanisms, techniques, and clinical applications of microneedling, highlighting its advantages and challenges in skin rejuvenation, and discusses future innovations in the field as it continues to evolve.

This review addresses obesity-related dermatoses and highlights the potential increased risk of skin cancer associated with obesity; it presents no new clinical findings.

This review discusses the use of derma rollers for cosmetic purposes and their potential in transdermal drug delivery by summarizing evidence on their design, efficacy, safety, and concerns from preclinical and clinical reports.

This report describes a three-generation family with Cantú syndrome linked to a novel ABCC9 gene variant, featuring acromegaloid appearance and hypertrichosis without growth hormone abnormalities, and suggests a potential association with pituitary adenomas.

This review discusses the current knowledge on using special and immunohistochemical stains for diagnosing hair disorders, concluding that no stains are recommended for routine use in hair pathology.

This study found that melatonin treatment increased epidermal thickness, subcutaneous fat, and dermal-related factors in postmenopausal rats, suggesting benefits for skin structure after menopause.

This study reports that a new protocol using Angio PRP improved wound healing in mice by enhancing key healing processes and regulating inflammation, suggesting potential for clinical advancements.