During the recent decades, an unmeasured
number of research papers have been published
describing the use of lipid-based carriers for topical
applications. These include liposomes [2], oil-inwater
(o/w) emulsions [3], multiple (w/o/w)
emulsions [4] and microemulsions [5, 6]. With the
purpose of increasing physicochemical stability of
both incorporated actives and the system itself,
solid lipid nanoparticles (SLN) [7] and nanostructured
lipid carriers (NLC) [8] have been developed