Puspitasari D, Cristy DWA, Langu FA. Optimization of PVA and HPMC in Peel-off Gel Face Mask Containing Beluntas Leaf Extract (Pluchea indica L.) Using the Simplex Lattice Design Method. PHARMADEMICA [Internet]. 2026 Mar. 30 [cited 2026 Apr. 2];5(2):208-20. Available from: https://jurnal.poltekkespim.ac.id/index.php/pharmademica/article/view/158