Breaking the skin barrier
Transdermal drug delivery: past progress, current status, and future prospects
Transdermal drug delivery with a pressure wave
Microneedles for transdermal drug delivery
Low-frequency sonophoresis
Penetration enhancers
Iontophoretic drug delivery
Skin electroporation for transdermal and topical delivery
Lipid vesicles and other colloids as drug carriers on the skin