D. E. Mugita Sari and G. P. Yudanti, “Formulation of Peel-off Gel Mask with 70% Ethanol Extract of Dragon Fruit Peel (Hylocereus polyrhizus Haw.) as Antioxidant with Concentration Variation of PVA Gel Forming & Propylene Glycol Humectant”, PCICHT, vol. 1, pp. 166–174, Jul. 2023.