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.
39 citations
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November 2016 in “Pharmaceutics” This study found that the contribution of the hair follicle pathway to skin permeation of chemicals can be predicted using lipophilicity, with hydrophilic chemicals showing greater permeation reduction from hair follicle plugging than lipophilic ones.
10 citations
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June 2019 in “International Journal of Pharmaceutics” Hair removal methods damage the skin barrier and affect substance penetration.
3 citations
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January 2009 in “Sen'i Gakkaishi” This study found that using a bicomponent reduction system with TGA and DTDG for hair straightening limited hair damage by forming only thiol groups, while a TGA-only system formed more damaging mixed disulfide groups.
June 2024 in “Majallah-i dānishgāh-i ̒ulum-i pizishkī-i Kirmān.” This study evaluated enhancers to improve skin absorption of topical cetirizine for androgenic alopecia treatment and found eucalyptus and Tween 80 most effective, while propylene glycol had the weakest effect.