Sambiloto leaves (Andrographis paniculata (Burm. f.) Wall. Ex Ness) has the potential as a photoprotective agent with a high content of quercetin and andrographolide. The preparation of Sambiloto leaves nanoemulsion was carried out to increase its photoprotective activity and stability. This study aims to determine the optimum concentration of Tween 80 and PEG-400 in the Sambiloto leaves nanoem…