182 citations
,
December 2007 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” This study demonstrated that hair follicles significantly expedite the absorption of caffeine through the skin compared to interfollicular pathways.
141 citations
,
November 2005 in “International journal of pharmaceutics” 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.
140 citations
,
December 2017 in “Journal of Controlled Release” This study reviews the evolution and modifications of microneedle drug delivery systems, initially designed for percutaneous use, now expanded for targeting a variety of tissues and organs such as ocular, oral mucosal, and gastrointestinal, suggesting widespread future applicability.
130 citations
,
August 2020 in “Drug Design Development and Therapy” This review discusses various nanoparticles used to enhance skin permeation and target delivery to skin organelles, but reports no new experimental results.
89 citations
,
November 2014 in “International Journal of Nanomedicine” 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.
85 citations
,
January 2007 in “Journal of Drug Targeting” This study found that liposomal formulations improved minoxidil delivery to skin layers compared to niosomes and a control solution, suggesting enhanced potential for topical hair loss treatment.
82 citations
,
January 2002 in “Journal of drug targeting” This study found that drug delivery through human scalp skin may be more effective for lipophilic and hydrophilic drugs compared to abdominal skin, highlighting the potential of intrafollicular delivery methods.
64 citations
,
May 2019 in “Materials Science and Engineering: C” This review outlines the development, applications, and challenges of microneedle-based drug delivery from 2000-2019, particularly highlighting fabrication techniques, but reports no new clinical results.
55 citations
,
August 2015 in “AAPS PharmSciTech” This study reports that a newly developed polyherbal phospholipid complex cream containing Citrus auranticum and Glycyrrhiza glabra extracts improved polyphenol retention in the skin, suggesting potential as an anti-aging cosmeceutical.
52 citations
,
November 2013 in “European Journal of Pharmaceutical Sciences” This study examined different polymersome systems for topical finasteride delivery and found that chitosan-decorated C7 polymersomes may enhance skin retention and provide controlled drug release compared to non-decorated systems in laboratory settings.
49 citations
,
August 2016 in “Aesthetic Surgery Journal” This study found that micro-needling with cosmeceuticals or platelet-rich plasma significantly improved wrinkles, skin laxity, scar softening, and hair growth over 12 months, with minimal side effects, and that the best results occur with pigment and platelet massaging between 5 to 30 minutes post-treatment.
48 citations
,
January 2017 in “Skin Pharmacology and Physiology” This study found that polymeric nanoparticles may effectively deliver finasteride topically to hair follicles, potentially improving alopecia treatment with fewer side effects than oral forms.
48 citations
,
December 2013 in “Drug Delivery and Translational Research” This study found that minoxidil-loaded niosomes with a Span 60 and cholesterol ratio of 1:2 significantly increased skin retention of minoxidil compared to control gel.
47 citations
,
April 2017 in “European Journal of Pharmaceutics and Biopharmaceutics” This study found that dutasteride-loaded nanostructured lipid carriers coated with a stearic acid-chitosan oligomer are stable, less cytotoxic, and suitable for topical delivery to promote hair growth.
47 citations
,
July 2014 in “European Journal of Pharmaceutics and Biopharmaceutics” This study concluded that polymeric nanoparticles effectively targeted hair follicles for drug delivery, but the organogel formulation did not enhance their penetration into the hair shaft.
43 citations
,
July 2016 in “European journal of pharmaceutical sciences” This study found that dexamethasone-loaded Eudragit® L 100 nanoparticles displayed controlled drug release depending on pH levels, with minimal toxicity to human fibroblasts.
40 citations
,
November 2017 in “International journal of nanomedicine” In this study, the researchers reported that chloramphenicol-loaded liposomes, particularly those incorporating deoxycholic acid, enhanced follicular uptake and showed strong antibacterial activity against methicillin-resistant Staphylococcus aureus, offering potential for treating MRSA-infected skin conditions with good skin biocompatibility and minimal toxicity.
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.
34 citations
,
October 1994 in “Journal of Pharmaceutical Sciences” This study found that increasing the proportion of ethanol in minoxidil formulations improved skin penetration in both in vitro and in vivo tests on mice.
32 citations
,
December 2017 in “Journal of Drug Delivery Science and Technology” This study found that co-delivery of minoxidil and caffeine in transfersomes with an optimized polysorbate formulation enhanced hair length and weight in vivo.
32 citations
,
June 2017 in “Journal of Pharmaceutical Sciences” This study found that coating liquid crystalline nanoparticles with chitosan significantly enhanced the skin permeation of 5α-reductase inhibitors, suggesting a promising strategy for improving topical delivery in androgenetic alopecia treatment.
28 citations
,
September 2020 in “Pharmaceutics” This review discusses the potential of three-dimensional printed mesoporous scaffolds for drug delivery applications, particularly for bone cells and tissues, but reports no new clinical results.
24 citations
,
September 2014 in “Drug Delivery” This study found that pretreating mouse skin with microneedles significantly enhanced the hair growth inhibitory effect of eflornithine cream, likely by improving its skin permeation.
24 citations
,
November 2009 in “Pharmaceutical Development and Technology” This study found that Transcutol P significantly enhanced the skin penetration of Finasteride in vitro, while cationic and anionic surfactants did not show such effects.
23 citations
,
January 2016 in “Theranostics” In this animal study, ultrasound combined with a new microbubble formulation of minoxidil increased hair growth rates and improved follicle characteristics more effectively than minoxidil alone.
23 citations
,
June 2014 in “Journal of Pharmaceutical Sciences” This study found that the HPCH-based formulation P-08–016 may facilitate finasteride deposition in the dermis, potentially offering an alternative to systemic therapy by minimizing systemic absorption.
23 citations
,
August 2005 in “Expert opinion on pharmacotherapy” This review examines the benefits and potential risks of androgen replacement therapy for male hypogonadism but reports no new clinical results; the authors highlight the need for careful risk assessment, especially in older men.
20 citations
,
June 2016 in “Magnesium research” In this study, magnesium was observed to penetrate human skin, with hair follicles significantly aiding this process depending on the concentration and duration of exposure.
17 citations
,
January 2023 in “Nanoscale Advances” The microneedle arrays effectively promote wound healing and have potential for clinical use.
16 citations
,
November 2020 in “International journal of pharmaceutics” This study found that PEGylation of nanoparticles enhances their penetration into hair follicles, with higher molecular weight PEG resulting in deeper follicular delivery.