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In this study, a newly developed nanoparticle-loaded hydrogel wound dressing demonstrated significant antibacterial, antioxidant, anti-inflammatory, and proangiogenic activities, effectively reducing pain and promoting healing in a murine burn wound model while preventing infection by *Staphylococcus aureus*.

This review examines advancements in "smart" hydrogel dressings for complex wound healing, highlighting innovations in materials that provide multifunctionality, such as responsive drug delivery and regenerative capabilities. The study also addresses potential challenges in clinical application, like manufacturing and regulatory hurdles.

This review discusses recent advancements in hair follicle organoid technology for alopecia treatment but presents no new experimental results, emphasizing the potential for clinical applications and drug screening.

This study found that a newly developed supramolecular FPC hydrogel effectively promotes wound healing through its anti-inflammatory and angiogenic properties, making it a promising material for wilderness first aid due to its storage convenience, sprayability, and ability to speed up wound recovery.

This study found that MDP hydrogel significantly accelerated wound healing and improved tissue formation in diabetic mice compared to a standard clinical hydrogel and control buffer.

This study found that the human placenta extracellular matrix hydrogel restored the hair-inductive capacity of high-passaged dermal papilla cells, enabling them to regenerate new hair follicles when co-grafted with mouse epidermal cells.

This study found that HAMA hydrogels promote faster healing of skin wounds in mice by enhancing the accumulation of anti-inflammatory macrophages and increasing type III collagen in the local wound environment.

This study developed HA-gel-dex hydrogels with enhanced ECM-like properties and functionality, showing promise for 3D bioprinting, tissue repair, and as wound dressings due to improved cell interaction, cytocompatibility, antimicrobial synergy, and wound healing in mice compared to traditional ECM bio-inks.

In this study, a silk-inspired hydrogel system was developed that combines photodynamic therapy and wound healing, which may significantly reduce melanoma recurrence and enhance healing of infected wounds.

In this study, the RADA-PRG hydrogel enhanced SKP proliferation, survival, and gene expression, effectively supporting hair follicle regeneration in mice.

This review discusses complications from hyaluronic acid filler treatments and explores their causes, presentation, and possible treatment guidelines, without presenting new results.

This review detailed the types and mechanisms of injectable "skin boosters" and evaluated their effectiveness and safety for mitigating age-related skin changes, providing insight into their use in contemporary dermatological practice.

This study found that gelatin microspheres loaded with platelet-rich plasma enhanced wound healing in rats by improving inflammatory and angiogenic responses compared to untreated wounds or PRP alone.

This study found that a newly constructed composite hydrogel dressing, made from silk fibroin, chitosan, and halloysite, promoted hair follicle neogenesis, angiogenesis tissue regeneration, and scar reduction.

In this study, a keratin hydrogel improved survival rates and functional recovery in rats with spinal cord injuries, suggesting potential for SCI treatment that merits further investigation.

In this study, researchers used 3D bioprinting with skin stem cells and specific hydrogels to create artificial skin that successfully promoted complete wound healing and the regeneration of skin structures, including hair follicles and blood vessels, in mice.

This review discusses the potential applications of injectable platelet‐rich fibrin in various conditions and reports no new clinical results; the authors highlight its favorable use in comparison to existing treatments.

This review highlights the potential of hydrogels in veterinary medicine, emphasizing their advantages over traditional wound dressings and their promising applications in drug delivery and tissue engineering, despite currently limited use in this field.

This study suggests that the hydrogel nanoparticle formulation of hair growth-promoting compounds may enhance hair follicle penetration and induce hair growth in tested models, demonstrating its potential as a hair growth treatment.

This study reported that treating wounds with a hydrogel from acellular porcine adipose tissue and adipose-derived stem cells may significantly enhance wound healing and regeneration by promoting new adipocyte formation.

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 found that the natural polymer-based hydrogel Gel/SA@PL released growth factors in a controlled way, which enhanced tissue regeneration and minimized scarring in the healing of diabetic wounds.

This review examines the design strategies for creating conductive hydrogels with adjustable properties for various biomedical applications, highlighting their potential for supporting cell growth, wound healing, drug delivery, tissue regeneration, and biosensing.

This study found that a dopamine-methacrylated hyaluronic acid hydrogel enhances the efficacy of adipose-derived stem cells in promoting skin regeneration, potentially involving the Notch signaling pathway.

This review discusses advancements and challenges in using 3D bioprinting for diabetic foot ulcer treatments, highlighting potential improvements and existing limitations in replicating skin architecture and clinical application.

This research concluded that the novel hydrogel PlacMA, derived from human placenta and curable by visible light, shows promise for cell culture and tissue engineering applications due to its tunable properties.

This study found that a lacticin 3147 solid lipid nanoparticle gel demonstrated potent and sustained antimicrobial activity against S. aureus, including MRSA, in ex vivo S. aureus-infected pig skin.

In this study, researchers developed a biocompatible, ROS-responsive hydrogel to deliver miR-665 locally, effectively reducing inflammatory signaling and promoting hair follicle regeneration in an alopecia areata mouse model, offering a promising approach for targeted treatment.

This study found that a newly developed biocompatible hydrogel, responsive to reactive oxygen species, enabled targeted delivery of miR-665, significantly promoting hair regeneration and reducing T-cell infiltration in a mouse model of alopecia areata, suggesting a promising strategy for treating this condition.

This study evaluated a new carboxymethyl chitosan/polyaldehyde dextran (CMCS/PD) hydrogel and found it to be a promising tissue adhesive for trauma emergencies in rats, showing rapid gel formation, strong adhesion, and better antibacterial properties than some commercial alternatives.