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This study presents a novel, scalable method for preparing highly hair-inductive tissue grafts using a bioprinter, which enhances hair follicle regeneration in mice, although most hair shafts remained beneath the skin.

This study demonstrates a method using intravital imaging to observe sensory hair-cell development and regeneration in zebrafish, which may facilitate assays for drug discovery related to aural function preservation.

This review discusses various methods for obtaining stem cell-derived conditioned media and its applications in disease treatment, finding generally positive results but highlighting the need for standardized production methods.

This review discusses different preparation and application methods of platelet-rich plasma in dental regenerative medicine and reports no new results, highlighting its potential and associated controversies.

This review analyzes the impact of different preparation methods for platelet-rich plasma, human follicles stem cells, and adipose-derived stem cells on hair regrowth and wound healing, but reports no new results; the authors emphasize convincing evidence of positive outcomes despite protocol variability.

This pilot study suggests that a new preparation of platelet-rich plasma gel may improve symptoms and tissue regeneration in patients with en coup de sabre scleroderma, though further trials are needed to clarify its role.

This study reported a new method enabling the observation of the full leg regeneration process in the crustacean *Parhyale hawaiensis* over 10 days, capturing cellular resolution while minimizing photodamage, through innovative imaging techniques and computer-assisted cell tracking.

This review discusses the characteristics, biomaterials, and tissue engineering methods for adipose-derived stem cells in a 3D environment, highlighting their potential in regenerative medicine without presenting new clinical results.

This study found that a newly developed hemi-vascularized sandwich method significantly improved the regeneration and maturity of hair follicles compared to other transplantation approaches in rat models.

This review article from the examined literature highlights the shift in eyebrow reconstruction techniques from traditional methods to minimally invasive and regenerative approaches, evaluating their principles, outcomes, and challenges to inform future clinical practices.

This chapter reviews bioengineered human hair follicles and discusses the pros and cons of different 3-D bioprinting methods, but reports no new experimental findings.

Scientists successfully created fully functional hair follicles using bioengineering methods and stem cells.

This review explores the variability in platelet-rich plasma therapy outcomes across different medical applications, attributing disparities to inconsistent blood processing methods, and it 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 study found that using uniform poly(lactic-co-glycolic) acid microspheres to deliver insulin-like growth factor 1 stabilizes the protein and enhances its sustained delivery, supporting stem cell functions comparably to traditional methods, and showing potential for tissue and organ regeneration.

This study summarizes the role and potential applications of stem cell exosomes in skin and bone healing, highlighting their regenerative capabilities and suggesting innovative delivery methods like nanoliposomes and hydrogels to improve bioavailability and therapeutic outcomes.

This review discusses the use, efficiency, and preparation methods of autologous platelet concentrates in wound healing and periodontal regeneration, but it reports no new clinical findings.

In this narrative review, the authors discuss regenerative substances like platelet-rich fibrin and mesenchymal stem cells in biological aesthetics, noting that while these methods show promise for regeneration, their safety, effectiveness, and durability remain uncertain due to limited and heterogeneous evidence.

This research review found that tailoring hair transplant techniques to individual patient needs improves outcomes, highlighting high follicle survival rates and satisfaction when appropriate methods are applied. However, the authors noted that varied study designs limit the ability to make direct comparisons among techniques.

This study highlights emerging regenerative strategies, such as stem cell-derived therapies and machine learning tools, that may advance hair loss treatment beyond traditional methods by promoting follicle regeneration and offering personalized care.

This study reviews advancements in hair follicle regeneration, discussing the benefits and limitations of methods such as organ germ assembling, stem cell induction, and bioprinting, while highlighting the challenges of replicating embryonic signals and finding suitable cell sources for clinical applications.

This study reviews the role of skin stem cells in aging and explores how organoids, as opposed to traditional methods, can advance research into aging skin and regenerative therapies.

This study review found that stem cells can be transformed into normal skin cells and skin organoids, offering promising methods for regenerating skin integrity and advancing both basic and clinical skin biology research.

In this study, researchers developed a method for high-resolution live imaging of leg regeneration in the crustacean Parhyale hawaiensis, which effectively captures the entire process at cellular resolution over 10 days while minimizing photodamage.

In this study, researchers developed a novel method using ultrasound stimulation and a hydrogel delivery system to enhance the regenerative effects of stem cell-derived extracellular vesicles on severe skin injuries, resulting in improved healing and hair follicle regeneration in a mouse model.

This study found that reducing skin bacteria through cage changes or antibiotics decreased wound-induced hair follicle neogenesis and slowed healing, suggesting skin microbiota and IL-1β signaling are important for regeneration.

This study developed mouse models to better understand acquired skin appendage dysfunction, finding that ultra-thin skin grafts maintained stable areas with minimal hair follicles compared to controls, which aids research on skin regeneration therapies.

In this study, low-intensity ultrasound was investigated as a noninvasive method for promoting hair regrowth in androgenetic alopecia using C57BL/6 male mice, revealing that specific frequencies and intensities can safely enhance hair regrowth compared to controls by optimizing mechanical effects without causing unsafe cavitation.

This review outlines the principles of regenerative medicine as applied to cosmetic dermatology, highlighting the need for more data and in vivo trials to standardize methods in this emerging field, while also suggesting future research directions.

This article provides an overview of mesenchymal stem cells, highlighting their extraction methods, differentiation potential, and applications in regenerative medicine, but reports no new clinical findings.