2026. Formulation and Antioxidant Activity of Effervescent Granule Preparation of Bay Leaf Extract (Syzygium Polyanthum (Wight) Walp.) Using the DPPH Method. Research of Service Administration Health and Sains Healthys. 7, 3 (Sep. 2026), 244–250. DOI:https://doi.org/10.58258/r7x5ra90.