Wulandari F, Mayefis D, Ghiffari HD, Gusmali DM. Formulasi dan Uji Aktivitas Antibakteri Krim Ekstrak Etanol Rumput Laut Cokelat (Sargassum polycystum) Terhadap Bakteri Propionibacterium acnes : Formulation and Antibacterial Activity Test of Brown Seaweed (Sargassum polycystum) Ethanol Extract Cream Against Bacteria Propionibacteria acnes. J Surya Medika. 2025;11(2):64-75. doi:10.33084/jsm.v11i2.7784