The aim of this study was to investigate the characteristic red palm oil nanostructured lipid carriers (RPO-NLC) made with microemulsion method. procedures prepared ratio Tween 80 : Span 20 (80:20 ; 70:30), surfactant (1:3.75 1:4), stearin (8:2 7:3 6:4). best particle size found at 80:20, 1:4, 6:4 respectively 24.73 ± 0.06 nm, zeta potential -7.43, turbidity 0,183% and polydispersity index 0.06...