A Perspective on the Topical Delivery of Macromolecules
September 01, 2018
The human skin protects the body from physical, mechanical, and chemical insults while preventing endogenous water loss. This function is predominantly achieved by a thin (10–30 µm) cornified outermost layer-the stratum corneum (SC)-generated through terminal differentiation of the basal epidermal keratinocytes. The stratum corneum protects the human body, but also severely limits drug delivery into and across the skin.