Putri Heldin, S.S. et al. 2026. Formulasi, Karakterisasi dan Uji Aktivitas Inhibisi Tirosinase Sediaan Nanoserum Kombinasi Ekstrak Daun Teh Hijau (Camellia sinensis L.)-Astaxanthin: Formulation, Characterization and Tyrosinase Inhibitory Activity Test of Nanoserum Preparation Combination of Green Tea Leaf Extract (Camellia sinensis L.)-Astaxanthin. Jurnal Sains dan Kesehatan. 7, 2 (May 2026), 132–142. DOI:https://doi.org/10.30872/.