Formulasi Masker Gel Peel-Off Ekstrak Etanol Daun Petai Cina (Leucaena leucocephala (Lam.) De Wit.) Sebagai Antijerawat Terhadap Pertumbuhan Bakteri Propionibacterium Acnes: Formulation of Peel-Off Mask Gel With Ethanol Extract of Chinese Petai Leaves (Leucaena Leucocephala (Lam.) De Wit.) As an Anti-Acne Against the Growth of Propionibacterium Acnes Bacteria. J. Sains. Kes 2024, 6 (1), 74-84. https://doi.org/10.30872/j.sains.kes.v6i1.255.