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This review discusses the aesthetic and dermatological uses of exogenous hyaluronic acid for skin rejuvenation and highlights the need for thorough investigation to confirm its claimed benefits, but it reports no new clinical findings.

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 review summarizes that polyesters hold promise for vascular tissue engineering due to their mechanical properties and biodegradability, but optimizing their use in repairing damaged blood vessels remains challenging due to the complexity of vascular tissues.

This review found that among emerging technologies for skin anti-aging, stem cell therapies using recipient chimerism might be more beneficial than CRISPR-Cas9 and other current innovations, though further studies on safety and efficacy are needed.

This review discusses the use of microneedling for androgenetic alopecia and finds it promising for enhancing hair density and thickness, especially when combined with other treatments, but notes no standardized protocol exists yet.

This review discusses the classification and regulation challenges of anti-ageing cosmetics in Europe and reports no new findings; it calls for increased transparency to help consumers make informed choices.

This review discusses the wound healing process and the factors contributing to abnormal scarring after thermal injuries, but it reports no new clinical results.

This study found that glycosaminoglycan levels were higher in the occipital area of the hair shaft compared to the parietal area, with children showing higher levels than adults.

This review summarizes major growth factors that promote hair follicle growth, but it reports no new experimental findings.

This review discusses the role of traditional Chinese medicine and bioactive materials in chronic wound healing and reports no new clinical results.

Burn scars form abnormally due to changes in wound healing, and more research is needed to improve treatments.

This study demonstrates that the amino-terminally shortened KGF-1 variant with 135 residues maintains biological activity, suggesting it may serve as an alternative to the original KGF-1 for certain therapeutic applications.

This review examines the differences in dermatology practices between Europe and North America, noting that European dermatologists often prioritize evaluating patients' psychosocial factors and utilize nondrug treatments, unlike their North American counterparts.

This review outlines the biological effects of various placental extracts, noting their reported antioxidant, anti-inflammatory, and immunomodulatory activities, but highlights that the relationship between these effects and the extracts' specific contents remains unclear.

This review highlights that the combination of ultrasound and microneedles can enhance transdermal drug delivery by using physical and energy-driven mechanisms to improve drug penetration into deeper skin layers, with implications for precision medicine and chronic disease treatments.

This overview examines the biology, origin, structure, and function of various cells and structures, such as the blood-retinal barrier and Merkel cells, and discusses their roles in disease pathogenesis, along with recent findings related to the lymph nodes' paracortex.

This chapter reviews the combined use of platelet-rich plasma and microneedling for cosmetic enhancement but reports no clinical results; the authors highlight existing uses and suggest potential synergistic benefits in dermatology.

This review discusses mesenchymal stem cells' role in tissue regeneration and skin anti-aging, highlighting their migration to damaged sites and secretome effects, but reports no new clinical results.

This study found that dietary supplementation with collagen, chondroitin sulfate, low-molecular weight hyaluronic acid, Pycnogenol®, and coenzyme Q10 significantly improved skin hydration, elasticity, nail hardness, and hair condition in patients with age-related dermatological changes after 12 weeks.

This chapter discusses the composition, biocompatibility, and production methods of biomaterials like collagen, chitin, and silk for dermal substitutes, focusing on preclinical and clinical research, but reports no new clinical results.

This case series provides anecdotal evidence that urinary bladder extracellular matrix may improve hair regrowth in donor scars and enhance hair follicle graft outcomes in hair restoration surgery.

Targeting drugs to hair follicles can treat skin conditions, but reaching deep follicle areas is hard and needs more research.

The researchers emphasize the limited scope of existing studies on lip aging, highlighting issues that include collagen loss and the deepening of lip lines with age, and suggesting a need for further research to guide cosmetic and clinical interventions.

This review integrates studies on mouse models and human clinical observations to highlight the role of immune cells in skin development and how their dysregulation leads to skin disorders, suggesting potential therapeutic pathways for skin regeneration.

This review found that hydrolyzed collagen supplementation, particularly marine collagen, improves skin hydration, elasticity, and density while strengthening hair and nails, especially when paired with vitamin C and trace elements; however, more studies are necessary to evaluate long-term efficacy across different sources and demographics.

Olive leaf extract may help reduce aging signs in postmenopausal women.

This study found that dermal papilla cell-conditioned medium can protect against UV-induced skin aging in a mouse model by modulating ferroptosis pathways, highlighting its potential for treating oxidative stress-related skin conditions.

This review explores the potential of microneedling as a drug delivery system for treating melasma, focusing on its mechanisms, safety, efficacy, and clinical advantages over conventional therapies like hydroquinone and lasers.

In this study, black wolfberry ferment was found to promote hair regrowth in mice with androgenetic alopecia by increasing hair weight, follicle count, and skin thickness, potentially through PI3K/AKT, NF-kappa B, and MAPK signaling pathways.

This review highlights the potential of marine-derived nutraceuticals for treating skin and hair disorders, focusing on Viviscal, a supplement shown to be safe and effective in enhancing hair growth by improving cellular function and strengthening hair.