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This chapter provides an overview of the complex chemical and physical structure of the hair surface, detailing how factors like ethnicity, environmental stress, and cosmetic treatments can alter its properties and influence the adhesion of hair care products.

This study found that PRP injections may safely improve penile curvature and PDQ scores in men with stable-phase Peyronie's Disease, although the curvature reduction observed was not enough to determine long-term clinical significance.

This review discusses the potential of hair follicle stem cells in hair regeneration therapies but reports no new clinical results, highlighting the need for further research to address existing challenges in their application.

This study examines the role of hair follicle stem cells in epidermal regeneration during skin soft tissue expansion, proposing a potential method for their cellular and molecular regulation.

The commentary suggests that using a single-scar technique for hair transplants can give good cosmetic results, but some surgeons hesitate to use it despite ways to address their concerns.

This study observed that platelet-rich gel for scalp defect reconstruction was more cost-effective and less painful but resulted in poorer hair growth compared to the external tissue expansion technique.

This study found that in murine dermis, fibroblast state switching between proliferation and ECM deposition plays a crucial role in tissue architecture and wound healing.

This article reviews the principles of donor and recipient dominance in hair transplantation and reports no new experimental results.

This study highlights the potential of novel non-invasive testing techniques to enhance the diagnosis, treatment, and care of scalp hair diseases, urging future research to improve their accuracy and efficiency.

In this study, researchers reported that a new skin-responsive FU excision device consistently succeeded in all patients of African descent, showing a mean graft transection rate of less than 10%, with skin thickness and firmness identified as major factors affecting graft attrition rate.

This review article summarizes recent advancements in biomimetic scaffolds, highlighting their promise in tissue engineering and personalized medicine, particularly for skin and musculoskeletal system regeneration, while emphasizing the need for more extensive research to ensure their safety for human use.

This review explores the potential of metal nanoparticles as innovative treatments for alopecia, highlighting their effectiveness in promoting hair regrowth, enhancing drug delivery, and modulating gene expression while also assessing the related experimental methodologies and regulatory considerations.

In this study, researchers successfully constructed a high-precision three-dimensional model of human skin dermis, revealing a detailed analysis of dermal porosity and pore diameter distribution, which can aid the development of biomimetic tissue-engineered skin.

This source reports that the JOLT technique using HA fillers is effective in lifting and tightening the lower face and neck, camouflaging the jowl, and improving marionette lines and the mandibular border.

This article discusses the follicular-unit grafting technique for hair transplantation and reports no clinical results; the authors highlight its potential for achieving natural-appearing outcomes but note the procedure's complexity.

This review highlights the critical role of neuroregulation in skin wound healing, emphasizing how neurotransmitters and neuropeptides regulate inflammation, angiogenesis, and cell proliferation, and discusses potential therapeutic strategies, such as neuromodulation, to enhance these processes.

This review discusses neuropathic pruritus, detailing its clinical presentations and management strategies, but reports no new clinical results.

This case report chronicles a three-year journey of long COVID in a previously healthy 26-year-old, detailing treatment trials and near-total remission, but provides no new generalizable data.

Various techniques and tools for hair restoration were presented in 1998, including a mathematical model for donor area, use of lasers in surgery, methods for controlling grafted hair direction, and ways to increase graft yield. Satisfaction rates were around 39%, and studies showed trauma and dehydration can damage hair follicles.

This review discusses newer therapeutic techniques for treating postacne scarring, highlighting their effectiveness for particular grades of scars, and reports no new clinical results.

This review discusses the design, properties, and potential applications of smart microneedles, with no new clinical results presented.

This article discusses the use of tissue expansion combined with older surgical techniques to repair large scalp defects and reports no new clinical results.

This review highlights recent advancements in FUE hair transplantation techniques and technologies, noting significant improvements in reducing follicle damage and increasing procedure speed, while emphasizing the need for surgeons to choose suitable devices for each patient's specific needs.

This study used proteomic techniques to analyze human hair proteins, revealing keratin heterogeneity and identifying posttranslational modifications, such as cysteine trioxidation and methylation.

This article discusses scalp reconstruction techniques using rotation flaps, with no new clinical results reported.

This article discusses reconstructive challenges following Mohs micrographic surgery on the forehead and reports no new clinical results, illustrating techniques applicable to this region.

This article reviews various techniques for treating scars on different body parts and recommends combining methods based on individual scar needs, but it reports no new clinical results.

This article reviews surgical techniques for addressing scalp defects and highlights hair restoration as a cosmetic improvement strategy, but it reports no new clinical results.

This study introduces a five-modal microscopy technique that allows label-free, in vivo observation and quantitative analysis of various wound healing processes.

This study introduces a new intracavity frequency modulation technique for tunable picosecond optical parametric oscillators, enhancing chemical contrast in coherent Raman imaging by allowing real-time subtraction of background signals.