47 citations
,
September 1997 in “Journal of Pharmaceutical Sciences” This study found that cationic lipid-based formulations enhanced the delivery of large molecules into hair follicles in human scalp skin, with potential to reach pharmacologically active concentrations in the hair bulb.
34 citations
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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.
82 citations
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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.
21 citations
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November 2020 in “European Journal of Pharmaceutics and Biopharmaceutics” This study found that low massage frequencies like 4.2 Hz enhance nanoparticle penetration into hair follicles more effectively than higher frequencies, indicating potential applications in therapeutic and cosmetic delivery.
January 2022 in “DOAJ (DOAJ: Directory of Open Access Journals)” This study found that the optimized nanostructured lipid carrier formulation effectively enabled caffeine to penetrate and accumulate in hair follicles, suggesting potential for intrafollicular delivery in treatments for hair loss.