Research Article

Antiacne Gel Containing Aloe vera and Clindamycin Phosphate: Design, Characterization, and Optimization Using Response Surface Methodology

Figure 11

Illustrating the effect of variables on permeation of clindamycin phosphate: (a) EUO and OA, (b) GC and OA, and (c) GC and EUO.
(a)
(b)
(c)