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This review discusses the application of confocal laser scanning microscopy for studying nanoparticle interactions with skin and highlights its potential for broad applications, but reports no new experimental findings.

This study found that targeting the hair follicle can be increased by using lipophilic drugs combined with surfactant solutions and propylene glycol.

This study demonstrates that confocal laser scanning microscopy can effectively visualize the rapid diffusion and penetration pathway of a dye into the hair follicle in fresh human scalp skin.

This study found that nano-sized lipid particles improved the skin accumulation and retention of dexamethasone compared to a base cream, suggesting potential benefits for inflammatory skin disease treatment.

This study found that adapalene-loaded nanospheres in a hyaluronic acid gel enhanced skin penetration and were nonirritant, making them potentially suitable for treating acne on oily skin.

This review discusses the applications of confocal laser scanning microscopy in visualizing fluorescent compounds within the skin, noting its potential for tracking drug carriers and enhancing penetration studies, but reports no new results.

Confocal Laser Scanning Microscopy (CLSM) is a useful tool for studying how drugs interact with skin and diagnosing skin disorders, despite some limitations.

This study found that finasteride-loaded microemulsions using poloxamer 124 significantly enhanced skin penetration of the drug compared to a standard solution, primarily through targeting hair follicles via the transfollicular pathway, with intercluster, intercellular, and transcellular pathways contributing less.

This study found that a CLSM-based approach could semi-quantitatively assess the transdermal penetration behavior of fluorescent dyes with different lipophilicities, offering a tool for early-stage screening of compound penetration.

In this study, ultradeformable liposomes containing Tween 20 or terpenes increased phospholipid bilayer fluidity and enhanced skin penetration of sodium fluorescein, with terpenes improving hair follicle penetration.

The flutamide-loaded hydrogel is a promising, skin-friendly treatment for acne and hair loss, potentially requiring less frequent application.

This study found that using a standardized protocol with microspheres of approximately 1.5 micrometers enhances penetration into hair follicles, particularly when skin is treated with cyanoacrylate skin surface stripping.

This study introduces a novel non-invasive method called "differential stripping" to quantify the penetration of topically applied substances into hair follicles.

This study found that surface modified nanoparticles showed increased skin permeation and improvement in allergic contact dermatitis, independent of the follicular pathway.

In this study, microneedles combined with finasteride nanostructured lipid carriers (FIN-NLC-MNs) were found to enhance skin penetration and specifically target hair follicles, promoting hair growth and gene regulation in androgenetic alopecia.

This study found that a topical transethosomal system may enhance the skin penetration and deposition of naftifine compared to a marketed cream, potentially overcoming the stratum corneum barrier.

This study found that transethosomal gel loaded with propranolol hydrochloride prolonged drug release and increased peak plasma concentration compared to an oral tablet, suggesting a promising alternative for delivery.

This study used ultrahigh-resolution optical coherence tomography to observe hair shaft structures, finding melanin granules absent only in white hair, which may explain color differences between black and white hair.

This source underscores the need for a multidisciplinary effort to raise awareness of Demodex and demodicosis, suggesting that prioritizing research, diagnostics, and treatment development could enhance global health outcomes and improve quality of life for affected individuals.

In this study, curcumin-loaded nanoparticles with a size of 400 nm showed optimal accumulation in human hair follicles after seven days, although mouse models differed significantly in penetration and retention, indicating limitations in their suitability for follicular drug delivery studies.

This study highlights that niosomes, or non-ionic surfactant based vesicles, offer an advantageous drug delivery system due to their stability, cost-effectiveness, and ability to enhance drug bioavailability and targeting efficiency for various therapeutic agents.

This review examines the role of hair follicles and sebaceous glands in percutaneous drug delivery but does not report new clinical results; it calls for further exploration of follicle-targeting therapies.

This study found that penetration enhancer-containing vesicles significantly improved minoxidil delivery to the skin compared to traditional liposomes and penetration enhancer-containing ethanolic solutions, with deformability linked to enhanced deposition.

This study found that the pH-sensitive hydrogel HECHA13, containing isoliquiritigenin, effectively inhibited the growth of Propionibacterium acnes and showed promise for transdermal delivery in acne treatment.

This study observed that the ontogenetic transition from scarless repair in early fetal rat wounds to scar-forming repair in late gestation is associated with differential TGF-β ligand and receptor expression patterns.

This review describes recent advances in using nanoparticles for drug delivery to hair follicles, with potential applications in treating skin diseases such as alopecia and acne, but reports no new findings.

This study suggests that spironolactone-loaded nanostructured lipid carriers could enhance follicular delivery and offer a more localized treatment for androgenic alopecia, potentially reducing systemic side effects.

This review discusses the development and future prospects of biomaterials for in situ tissue regeneration but reports no new research results; it underscores the importance of biomaterials in addressing tissue defects.

This review highlights how advanced nanocarrier and microneedle-based transdermal drug delivery strategies can potentially improve the treatment of skin diseases by enhancing site-specific drug delivery, increasing skin penetration, and reducing systemic toxicity compared to conventional methods.

This study found that nanoparticles did not permeate intact rat skin but could penetrate skin that had been artificially punctured, primarily through grooves or hair follicles.