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This study demonstrated that engineered skin substitutes using human keratinocytes and murine dermal papilla cells can develop pigmented hairs without sebaceous glands, suggesting separate pathways for hair development and eruption.

This study found that STRIP1 and the STRIPAK complex play a key role in regulating F-actin and cell-cell junctions, which are essential for maintaining the epidermal barrier in mouse skin.

This review discusses the cosmetic applications and healing phases of microneedling and reports no new clinical findings; the authors highlight its use for skin and hair treatments without epidermal damage.

This study found that mesenchymal cell processes from the dermal papilla contact epithelial hair matrix cells through gaps in the basal lamina during hair matrix cell differentiation in mouse vibrissa follicles.

This study found that hemoglobin α is upregulated in epidermal keratinocytes after UV exposure and may function as an antioxidant, particularly for hair follicle stem cells.

This study demonstrates that keratinocyte cell lines derived from cultured hair follicles can fully differentiate in organotypic skin models, offering a minimally invasive alternative to obtaining keratinocytes for research.

This study reported successful repigmentation of perioral vitiligo using upper hair follicle transplantation combined with a 308 nm excimer laser, without undesirable hair growth in the treated areas, offering a potential approach for treating vitiligo cases unresponsive to traditional melanocyte transplantation.

This study observed that exosome treatment in skin led to increased dermal vascularity and mild inflammation, with one alopecia patient showing hair follicle growth at treated areas.

This study found that adnexal acantholysis does not reliably distinguish pemphigus vulgaris from pemphigus foliaceus, but the level of acantholysis and degree of dyskeratosis serve as distinguishing features among acantholytic disorders.

This case report describes a pregnant woman who developed bullous impetigo, which resolved after treatment with clindamycin, suggesting that this condition should be considered in similar blisters in pregnant women.

This study found that Er–YAG laser treatment significantly enhanced skin absorption and follicular delivery of antialopecia drugs, suggesting a potential laser-assisted approach to treat alopecia.

This study investigated the effects of 10600nm CO2 dot laser and Nd: YAG laser on Wistar rats' skin, finding that CO2 laser treatment resulted in higher positive expression of MMP-1 and TIMP-1 compared to Nd: YAG laser, with statistically significant differences noted.

In this study, fractional laser treatment was observed to reverse age-related gene expression changes in skin and enhance dermal remodeling, further improved by multiple treatments.

This study suggests that fractional infrared technology may effectively improve cervical skin laxity by enhancing dermal thickness without adverse effects in a small pilot group.

This study found that sub-100 nm size solid lipid nanoparticles showed the most effective skin penetration and depth, mainly via hair follicles, in rat skin.

Technique effectively treats deformities, achieves re-pigmentation, and releases scar contractures.

This review suggests that paradoxical hair growth after light-based treatments is unlikely due to the devices themselves; instead, it may be linked to other factors such as inflammation in individuals with certain conditions.

This study found that fractional ultrapulse CO2 laser resurfacing effectively enhanced upper eyelid crease and brow position in patients with low and moderate dermatochalasis, with only mild side effects reported.

This study found that the long-pulse Nd:YAG laser effectively reduces unwanted facial hair across various skin types, with hair regrowth delayed significantly longer than with self-applied methods.

This study found that nano-sized lipid particles improved the skin accumulation and retention of dexamethasone compared to a base cream, suggesting potential benefits for inflammatory skin disease treatment.

The skin's layers protect, sense, and regulate the body's internal balance, but can be prone to cancer.

This review summarizes current knowledge on tight junctions in mammalian skin and their role in drug delivery and interaction with other barrier components, but reports no new experimental results.

This chapter discusses the skin stem cell niche as a complex ecosystem and highlights the diverse components and interactions that influence stem cell function, but it reports no new experimental results.

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

This review outlines the histological structures of the skin, highlighting species and regional differences in dermal absorption and obstacles encountered in toxicological assessments due to epidermal thickness variability, contact dermatitis reactions, and stem cell vulnerabilities.

This study found that multiple treatments combining NIR laser phototherapy with ICG significantly reduced inflammation and improved skin condition in acne without side effects.

This chapter reviews the skin's structure and its clinical relevance, highlighting connective tissue diseases and the potential for novel treatments like protein, cell, or stem cell transfer, but reports no new findings.

Skin changes throughout life, from development before birth to aging effects like wrinkles, influenced by both genetics and environment.

This review summarizes the research on bioactive materials that modulate the skin microenvironment to promote wound healing and highlights the essential role of the fascial layer, without presenting new experimental results.

This article reviews the basics of hair follicle biology, laser/tissue interactions, and hirsutism and hypertrichosis causes, discussing the long-pulsed alexandrite laser's role in hair reduction without reporting new clinical results.