5 citations
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May 2020 in “Pharmaceutical Research” This study found that short durations of heat and specific chemical penetration enhancers significantly improved the delivery of finasteride to human scalp skin and hair follicles.
July 2020 in “Pharmaceutical Research” This article discusses methods to enhance finasteride delivery to scalp skin using heat and chemical penetration enhancers and reports no new experimental findings.
22 citations
,
April 2018 in “Pharmaceutics” This special issue reviews current challenges and innovative solutions for enhancing the penetration of topical formulations for human skin, reporting no new results.
8 citations
,
June 2019 in “Pharmaceutical research” This study found that using short durations of heat with chemical penetration enhancers improved isotretinoin delivery to human skin, especially via the hair follicles.
2 citations
,
August 2023 in “Pharmaceutics” This paper reviews the development of transdermal drug delivery systems for skin diseases, from first to fourth generation, and highlights ongoing challenges and the importance of clinical trials, but provides no new clinical results.
2 citations
,
January 2016 This study found that nanoemulsions containing oleic acid or eucalyptol significantly enhanced the skin penetration of caffeine and naproxen compared to aqueous solutions, primarily by increasing solute diffusivity in the stratum corneum.
January 2018 in “Iranian Journal of Pharmaceutical Sciences” In this laboratory study, eucalyptus oil, menthol, and urea were found to enhance the skin permeability of minoxidil in rat skin by increasing flux and diffusion coefficients compared to untreated skin.
34 citations
,
July 2010 in “Expert Opinion on Drug Delivery” This review highlights the need for methodologies to understand and quantify drug penetration into hair follicles as significant drug pathways, noting this area lacks comprehensive articles and reports no new results.
January 2022 in “OPAL (Open@LaTrobe) (La Trobe University)” This study used advanced optical imaging techniques to investigate nanoparticle and dye penetration in human skin, finding that nanoparticles mainly resided in the stratum corneum and accumulated in skin folds and hair follicles, while highlighting that sunscreen-based nanoparticles appear unlikely to pose safety concerns.
205 citations
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September 2018 in “Nutrients” This review summarizes the volatile components, biological activities, and potential safety concerns of essential oils from various Curcuma species, but reports no new clinical results.
1 citations
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July 2005 in “Drugs and the pharmaceutical sciences” Targeting drugs to hair follicles can treat skin conditions, but reaching deep follicle areas is hard and needs more research.
This study found that modern styling cosmetics can significantly alter hair structure through changes in interfacial chemistry and cohesion, particularly when applied to already damaged hair.
25 citations
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December 2013 in “Journal of Investigative Dermatology Symposium Proceedings” This review discusses recent advancements in cutaneous drug delivery technologies and the potential of transfollicular pathways for improved treatment of skin conditions, but reports no clinical results.
22 citations
,
November 2018 in “Brazilian Journal of Pharmaceutical Sciences” This review discusses iontophoresis, low-frequency ultrasound, and microneedles for enhancing topical drug delivery in dermatological treatments and reports no clinical results; it emphasizes their mechanisms and potential uses.
16 citations
,
March 2008 in “International journal of pharmaceutics” This study found that formulation factors like pH, viscosity, and chemical enhancers can significantly influence intrafollicular hydrocortisone permeation in vitro, with higher pH and enhancers reducing follicular contribution.
14 citations
,
March 2019 in “European journal of pharmaceutics and biopharmaceutics” This study observed that proretinal nanoparticles delivered significantly higher concentrations of retinal to the stratum corneum and hair follicles compared to non-particulate forms, potentially improving topical retinoid therapy.
8 citations
,
May 2020 in “International journal of biological macromolecules” In this study, researchers evaluated the binding of keratin-associated proteins and α-keratins to human hair fibers, finding that chemical preactivation significantly enhanced binding to natural hair, while perming altered binding characteristics and increased penetration depth.
December 2025 in “Universal library of medical and health sciences.” This study analyzes contemporary theories and practices to understand key factors influencing the development of the examined phenomenon, proposing trends and practical applications for researchers and practitioners, while acknowledging study limitations and suggesting future research directions.
4 citations
,
May 2025 in “International Journal of Nanotechnology and Nanomedicine” This review highlights recent advances in the design of nanocarrier systems for transdermal drug delivery, detailing their potential to improve treatment precision for dermatologic conditions despite challenges like formulation stability and scalability.
72 citations
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December 2012 in “Expert Opinion on Drug Delivery” This review discusses niosomes' increasing popularity in dermatology for topical drug delivery due to their ability to enhance drug penetration, provide sustained release, and carry various drugs, while reporting no new clinical findings.
August 2026 in “Pharmacological Research - Modern Chinese Medicine” This review reports that microneedle systems can enhance the delivery and effectiveness of Traditional Chinese Medicine compounds in treating skin disorders, though most findings are based on preclinical studies and face challenges in translating to clinical practice.
365 citations
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March 2021 in “Frontiers in Bioengineering and Biotechnology” This review discusses the potential of nanocarriers to enhance transdermal drug delivery and the combination of these carriers with physical methods, but it reports no new experimental results.
December 2025 in “The American Journal of Medical Sciences and Pharmaceutical Research” This study outlines how combined ultrasonic and infrared hair treatments may enhance hair restoration and performance by breaking down keratin disulfide bonds for better treatment access and sealing cuticle scales to preserve improvements, with potential applications in salon and home settings.
8 citations
,
June 2022 in “International Journal of Molecular Sciences” This review discusses the potential of extracellular vesicles for facial aesthetic applications, including scar reduction and skin rejuvenation, but reports no new clinical results; further research into production and mechanisms is needed.
3 citations
,
September 1989 in “Journal of Investigative Dermatology” This study found that methyl nonanoate and methyl caprate significantly enhanced the skin penetration of minoxidil compared to solutions with other common enhancers like Azone, DMSO, or DEET.
35 citations
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January 2018 in “Skin pharmacology and physiology” This study found that nanoemulsion formulations with oleic acid or eucalyptol significantly enhanced the delivery and retention of caffeine through hair follicles and surrounding skin regions.
34 citations
,
October 2021 in “Scientific Reports” This study found that nobiletin-loaded vesicles effectively restored skin condition in a mouse model of skin cancer, suggesting they are a promising treatment delivery system.
26 citations
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May 2012 in “Pharmaceutical Development and Technology” PEVs effectively deliver minoxidil through skin.
128 citations
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July 2009 in “International Journal of Pharmaceutics” 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.
15 citations
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May 2016 in “Die Pharmazie” This study found that nanostructured lipid carriers provided better skin-targeted delivery and drug loading for lidocaine than nanoethosomes, indicating improved local anesthetic efficacy in vitro.