316 citations
,
July 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.
20 citations
,
August 2014 in “Therapeutic delivery” The transfollicular route shows promise for noninvasive, targeted drug delivery but needs more research.
47 citations
,
October 2016 in “Fitoterapia” Some herbs and their components might help treat hair loss by affecting various biological pathways, but more research and regulation are needed.
141 citations
,
December 2005 in “International journal of pharmaceutics” Hair follicles may soon be used more for targeted and systemic drug delivery.
10 citations
,
April 2016 in “Research and reports in transdermal drug delivery” Transfollicular drug delivery is promising but needs more research to improve and understand it better.