14 citations
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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.
25 citations
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June 2015 in “Clinical, Cosmetic and Investigational Dermatology” This study found that using an electrical microneedling device enhanced the penetration of liposomal melanin-fluorescein into hair structures and widened the follicular infundibulum in ex vivo human skin models.
May 2025 in “Drug Delivery and Translational Research” 37 citations
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January 1997 in “Journal of Pharmaceutical Sciences” This study observed that hairless rat skin was more permeable to mannitol and progesterone than hairy rat skin, indicating that follicular structures significantly impact percutaneous absorption.
27 citations
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September 2018 in “Medicines” This study reported that oleic acid-based nanovesicles improve follicular delivery and reduce side effects of minoxidil compared to traditional MXD lotions.