Research Article
Design and Optimization of Cationic Nanocapsules for Topical Delivery of Tretinoin: Application of the Box-Behnken Design, In Vitro Evaluation, and Ex Vivo Skin Deposition Study
Figure 6
Skin retention (μg/cm2) of hydrogel containing tretinoin-loaded lipid-core nanocapsules (HG-TTN-LCNC), tretinoin solution (HG-TTN), and commercial gel (HG-C) in the abdominal rat skin. Results are shown as (). All formulation was 0/025% .