The Effect of HPMC (Hydroxypropyl Methylcellulose) on the Physical Stability of Peel-Off Gel Masks Containing Aloe Vera (Aloe vera) and Moringa Leaves (Moringa oleifera L.): Pengaruh HPMC (Hydroxy Propyl Methyl Cellulose) Terhadap Stabilitas Fisik Masker Gel Peel-Off Ekstrak Lidah Buaya (Aloe vera) dan Daun Kelor (Moringa oleifera L.). Pharmasci. 2025;10(2):168-176. doi:10.53342/ncmszk19