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This review summarizes advancements in biomedical engineering for hair follicle regeneration, highlighting strategies like cell transplantation and tissue engineering to reconstruct hair follicles, and discusses both their technical limitations and potential future innovations in regenerative medicine.

This review explores the potential of regenerative cosmetics, specifically engineered skin tissues, for rejuvenating aging skin, healing wounds, and restoring hair, offering promising alternatives to traditional dermocosmetic treatments by promoting collagen production, reducing wrinkles, and regenerating hair follicles.

This review discusses autologous dermis-derived stem cells and their potential in regenerative medicine, summarizing current literature on their niches, characteristics, and applications, but it reports no new experimental results.

This review addresses the limitations of current engineered skin substitutes for burn patients and highlights potential improvements through stem cell biology and skin morphogenesis, but it reports no new clinical results.

In this study, researchers used a new method with platelet-rich plasma-loaded microcarriers to enhance dermal papilla cell activity and hair follicle regeneration, achieving significant hair and vessel growth in a mouse model compared to control groups.

This study developed a bilayer material combining poly(vinyl alcohol) and bacterial cellulose with a gelatin-poly(vinyl alcohol) hydrogel, showing strong potential as a wound dressing due to its good antibacterial properties, cell viability, and sustained drug release.

This review discusses recent advancements in 3D bioprinting for skin regeneration and describes potential improvements for clinical applications, but it reports no new experimental results.

This review discusses the growing importance of hydrogel scaffolds in skin wound healing, highlighting their unique properties and recent advancements in their use for treating difficult tissue damage, particularly within tissue engineering.

This review highlights recent advances in hair follicle research, noting that new 3D culture techniques have enabled formation of HF-like structures in vitro, offering potential benefits for alopecia and burn patients, but it reports no new clinical results.

This review highlights the potential of exosomes, particularly those derived from mesenchymal stromal cells, for treating skin conditions and regeneration, but it also identifies challenges in their production and application.

This review explores recent advancements in skin tissue engineering using 3D bioprinting, discussing current methods, bioink formulations, and outlining both achievements and limitations without presenting new clinical results.

This review discusses the role of hair follicle stem cells as active signaling centers in skin homeostasis, highlighting recent advancements and reporting no new clinical results.

This review discusses the applications and potential of Bioengineered Artificial Skin Substitutes in cosmetics and pharmacology research, with no new clinical findings reported.

This study demonstrated the potential of epithelial cell scaffolds fabricated with various materials for effective hair regeneration, highlighting their promising application in tissue engineering for alopecia treatment.

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 review paper highlights that titanium dioxide nanoparticles (TiO2 NPs), due to their biological properties like antioxidant, anti-inflammatory, and antimicrobial effects, show promise in accelerating wound healing and enhancing tissue regeneration when used in scaffolds and dressings.

This review highlights recent advancements in the engineering of skin organoids using hydrogels, which improve their structural and functional fidelity by supporting the architecture and integration of vascular and neural components, promising to enhance regenerative medicine, drug discovery, and complex skin disorder studies.

This study demonstrated that implanting μm-scale full-thickness columns of human skin tissue into immunodeficient mice restored key features of normal human skin, suggesting potential for human wound repair with minimal donor site morbidity.

This study established an efficient short-term culture system for human hair follicle stem cells using human fibronectin and ROCK inhibitor Y-27632, enhancing cell proliferation and stemness for potential applications in hair follicle tissue engineering.

This review found that 3D bioprinting significantly advances skin tissue engineering by enabling the creation of complex, patient-specific skin structures, though technological and regulatory challenges persist, particularly in areas like scalability and physiological mimicry.

This review discusses recent advancements and ongoing challenges in engineering human skin with appendages using scaffold-free and scaffold-based bioengineering approaches, but it reports no new clinical results.

This review outlines the evolution of hair follicle engineering and its foundational discoveries, but reports no new experimental results.

This review highlights advancements in 3D bioprinting for skin tissue engineering, focusing on exosome-loaded bioinks that show potential for enhancing skin regeneration and repair.

This review discusses the modern approach of skin tissue engineering for chronic wound treatment, focusing on bioengineered artificial skin substitutes and assessing innovations in biomaterials and cell use; it reports no new clinical results.

This review discusses recent advancements in microneedle technology for hair loss treatment, highlighting their ability to enhance drug delivery and improve hair follicle survival in transplantation, while also exploring their potential integration with tissue engineering to address regeneration challenges.

Bone-marrow and epidermal stem cells help heal wounds differently, with bone-marrow cells aiding in blood vessel formation and epidermal cells in hair growth.

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.

This review discusses the current state and potential future of polymer-based microneedles for transdermal drug delivery, without reporting new empirical results; it highlights their applications and existing challenges.

This review outlines various 3D bioprinting techniques and bioinks used for creating artificial tissues and organs, emphasizing their potential in addressing organ transplant shortages and advancing drug testing, while acknowledging existing challenges and future prospects.

This research reports that copper-quercetin complexes show strong potential in antioxidation and cancer therapy, while their effects on specific cell death pathways warrant further investigation.