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This research found that STAR particles, ceramic particles with microneedles, significantly enhance skin permeability and improve the topical delivery of drugs like minoxidil and acyclovir, effectively promoting or inhibiting hair growth without causing skin irritation in ex vivo pig skin and rat models.

This study found that aligned electrospinning membranes enhance skin wound healing by upregulating MMP12 expression and inhibiting fibroblast migration, which results in reduced scar formation, providing valuable insights for developing more effective biological dressings.

This review discusses the use of nanomaterials in cosmetics, highlighting their benefits like enhanced stability and skin penetration, while also noting potential health risks and the role of natural ingredients in formulations.

This study found that erythrocyte-anchored CPA-encapsulated nanoparticles improved the delivery and accumulation of Cepharanthine in the lungs, enhancing its effectiveness in treating acute lung injury by reducing inflammatory responses.

This review covers the diverse clinical applications of platelet-rich plasma in regenerative medicine but provides no new clinical results.

This study demonstrated that in vitro pig ear models effectively predict human follicular uptake of nanoparticles for potential transfollicular vaccination, but massage did not enhance nanoparticle penetration.

This study found that medium-sized particles (643 and 646 nm) penetrated deeper into porcine hair follicles in vitro than smaller or larger particles, suggesting size-selective targeting within follicular sites.

This study found that substance P and calcitonin-gene-related peptide have different roles in regulating hair growth in mice, with substance P promoting anagen progression and calcitonin-gene-related peptide inhibiting it.

PLLA injections can cause hair loss and skin issues.

This case study reports that a 35-year-old woman developed nonscarring alopecia following the cosmetic use of poly-L-lactic acid on her face and hairline.

In this study, PDO, PLLA, and PCL thread implants in ageing rat skin did not alter MMP1 gene expression but maintained collagen levels similar to young skin without UV-B exposure, suggesting possible benefits for skin collagen but not gene expression modification.

This research found that hyaluronic acid increased cell proliferation and type I collagen more effectively than poly-L-lactic acid in both human fibroblast cultures and rat dermis.

In this study, PDLLA treatment in middle-aged mice was observed to enhance hair growth by increasing macrophage M2 polarization and hair follicle stem cell proliferation, potentially rejuvenating the skin's microenvironment and offering a novel approach for age-related hair loss.

This study found that PDLLA filler treatment may help combat age-related hair thinning by reducing oxidative stress and enhancing hair follicle function in both cell and animal models.

This narrative review examines advancements in regenerative aesthetic medicine, focusing on injectable modalities like PRP, polynucleotides, and exosomes, but highlights the need for more robust evidence and standardization in clinical applications.

This study suggests that a sandwich-structured wound dressing with bioceramic and polylactic acid layers may improve burn wound healing by absorbing exudates and promoting hair follicle regeneration.

This review highlights that injectable biostimulatory agents like poly-L-lactic acid, polycaprolactone, and calcium hydroxyapatite are effective in regenerative aesthetics by enhancing collagen production, stimulating adipogenesis, and improving dermal quality, although further research is needed to standardize protocols and confirm long-term safety and efficacy.

This review discusses the multifaceted actions of metformin in polycystic ovary syndrome and reports no new clinical results; the authors emphasize metformin's potential benefits in both cardiometabolic and reproductive aspects of PCOS.

In a study on wound healing, researchers described injectable POEGMA‐DA hydrogels as a promising non-toxic alternative to traditional wound closure methods, showing effective tissue adhesion and enhanced regeneration of skin structures in a mouse model without significant inflammation.

This study developed a nanofiber wound dressing combining ciprofloxacin and tetracycline hydrochloride, which demonstrated strong antibacterial activity against E. coli and S. aureus and showed good biocompatibility with human skin fibroblast cells, indicating significant potential for wound healing applications.

This study reported that a new bioinspired injectable hydrogel, CQCS@gel, showed promise as a multifunctional wound dressing by achieving rapid hemostasis and promoting the healing of infected skin wounds in both in vitro and in vivo tests.

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.

This study found that AGO@HPC nanocomposite films demonstrated enhanced mechanical, anti-ultraviolet, and antibacterial properties, suggesting potential for use in antibacterial packaging and wound-dressing applications.

This review discusses the most common types of alopecia in adolescents and emphasizes the importance of psychosocial support, but reports no new clinical findings.

This review highlights cobalt's essential role in vitamin B12 metabolism and its biomedical applications but also warns of health risks from high levels and environmental contamination, discussing remediation methods like phytoremediation.

Lacto-fermentation changes amino acid profiles in bovine colostrum, but results are inconsistent.

This study investigated a liposomal hydrogel system for delivering minoxidil and tretinoin to treat androgenic alopecia, finding that the system enhanced skin permeation of minoxidil while retaining tretinoin on the skin and was non-irritating in animal tests, suggesting its potential effectiveness.

This study found that polymeric micelle nanocarriers delivered pharmacologically relevant amounts of spironolactone to the epidermis and upper dermis, with higher delivery to pilosebaceous units, suggesting potential for treating glucocorticoid-induced impaired wound healing and pilosebaceous androgen-related skin diseases.

This case report describes a 10-month-old boy with dermatitis, alopecia, and hypotonia who showed dramatic improvement with oral biotin, suggesting a possible defect in biotin absorption or transport.

This review focuses on the roles of amino acids, peptides, and proteins in cosmetics, highlighting their importance in skin health and their potential for development in personal care products due to their unique properties and biocompatibility.