The aim of this study was to examine the efficacy of self-nano phospholipid dispersions (SNPDs) based on Phosal1to improve the oral bioavailability of curcumin (CUR). SNPDs were prepared with Phosal153 and Miglyol 812 at different surfactant ratio. Formulations were evaluated for particle size, polydispersity index, zeta potential, and robustness toward dilution, TEM as well as in vitro drug release. The in vivo oral absorption of selected formulations in comparison to drug suspension was evaluated in rats. Moreover, formulations were assessed for in vitro characteristic changes before and after storage