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This review highlights that current in vitro models often fail to replicate the physiological oxygen levels experienced by different skin cell types, which could affect redox states and functions, potentially accelerating skin aging.

This review highlights exosomes as a promising treatment for skin damage from UV light, infrared radiation, burns, and disorders due to their anti-inflammatory properties, ability to induce macrophage polarization, and acceleration of skin repair and regeneration.

This review highlights the potential of microneedle devices in dermatology for conditions like skin aging and autoimmune skin diseases, emphasizing their ability to facilitate targeted drug delivery by creating temporary skin pathways.

This study found that some white or grey hairs can naturally regain pigmentation, suggesting hair greying may be reversible in certain conditions linked to psychological stress.

This chapter outlines eyebrow aging and aesthetics and describes a five-step approach using neurotoxin and filler synergy to enhance eyebrow appearance, but reports no new clinical results.

This review discusses age-related and environmental factors affecting scalp hair changes in women, highlighting diagnostic complexities and ongoing research into targeted treatments, without reporting new clinical results.

The abstract discusses the multidisciplinary nature and advancement of dermatology and aesthetic procedures within the health sciences, emphasizing the integration of diagnostic, corrective, preventive, and therapeutic approaches, but does not provide specific study results.

This study classified dutasteride, fesoterodine, and finasteride as beneficial for older or frail elderly patients, while suggesting caution or avoidance of α-blockers and antimuscarinics in this group.

This study found that stabilizing β-catenin in a specific mouse model led to temporarily increased hair density but ultimately accelerated hair follicle aging and hair thinning.

This narrative review highlights innovations in regenerative medicine and longevity research within plastic surgery, emphasizing biological, ethical, and regulatory aspects. The study underscores the potential to extend healthspans while balancing these advances with ethical considerations and safety.

This study provides a comprehensive overview of actinic keratosis, highlighting its potential to progress to squamous cell carcinoma and noting that routine treatment poses a significant burden on healthcare providers.

This commentary discusses the cultural and biological significance of hair, intertwined with humorous and poignant anecdotes from cancer care, and reports no new research findings.

In this study, researchers observed that in mice, as they age beyond 200 days, unusual curved hair follicles and increased white hairs emerge, indicating stem cell-related changes in keratinocyte and melanocyte characteristics, providing insights into hair aging processes.

This study suggests that dermal adipocytes play a significant role in skin aging, particularly through the process of adipocyte-myofibroblast transition, highlighting them as potential targets to combat aging in chronically photo-damaged skin.

This study found that DNA methylation-based age predictors and lifestyle factors significantly affect perceived age and external visible characteristics in the aging process, with implications for forensic and anti-aging cosmetic applications.

This study reports that a single intradermal injection of autologous adipose-derived stem cells improved visible aging signs such as wrinkles and pore size on facial skin for over a year in eight patients, with in vitro data suggesting muscle involvement in the rejuvenation process.

The study observed that mRAGE expression is prevalent in keratinocytes of the healthy human epidermis and may regulate inflammation and apoptosis to maintain skin homeostasis rather than responding to aging processes.

This study found that Dab2 conditional knockout mice experienced delayed hair follicle cycles and reduced hair follicle stem cell activity, suggesting Dab2's crucial role in regulating stem cell activation and anti-aging process in hair follicles.

In this study of 131 healthy men aged 30 to 45, no relationship was found between androgen receptor gene polymorphisms related to androgen sensitivity and biological age markers, suggesting that other factors may influence the aging process independently of these genetic variations.

This article reviews how chronological aging affects female scalp hair growth and suggests that multiple factors, including environmental influences, contribute to female pattern hair loss; no new clinical results are presented.

This review examines how caloric restriction could promote autophagy to rejuvenate aging stem cells, though the precise molecular mechanisms remain unclear.

This article reviews the cellular and molecular processes of acute and chronic wound healing, emphasizing the need for collaboration between researchers and clinicians to advance therapeutic solutions; it presents no new clinical results.

Older adults still engage in sexual activities but face challenges like health issues and lack of professional support, highlighting the need for better healthcare provider education and research on sexual fulfillment in old age.

This review discusses how fibroblast metabolic processes and life span are influenced by the malate dehydrogenase shuttle system and highlights factors affecting fibroblast proliferative activity, without presenting new experimental results.

This review discusses the effects of calorie restriction on skin aging, highlighting its potential to benefit skin health by reducing age-related and photo-induced changes, although the impact of certain diets remains unexplored.

This source provides medical information intended solely for licensed professionals and emphasizes that it is not a substitute for medical advice, diagnosis, or treatment decisions, which remain the responsibility of treating physicians.

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.

OCT4 helps hair stem cells renew and fight aging, potentially aiding hair regrowth.

This chapter provides dermatologists with hair care guidance for alopecia patients and emphasizes that improper handling and chemical processing can worsen hair loss, though it reports no new clinical findings.

This narrative review concluded that facial aging involves complex anatomical changes that require multimodal rejuvenation approaches, integrating fillers, collagen stimulators, botulinum toxin, and energy-based devices for effective results, while emphasizing the need for scientific evidence and patient safety in aesthetic treatments.