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

Abstract

The 70% ethanol extract of dragon fruit peel (Hylocereus polyrhizus Haw.) contains antioxidant activity in the form of flavonoids. This study aims to formulate a 70% ethanol extract of dragon fruit peel (Hylocereus polyrhizus Haw.) into a peel-off gel mask preparation with varying concentrations of PVA and propylene glycol, namely base without extract F1 (10%:10%), F2 (10%: 10%), F3 (10%:15%), and F4 (15%:10%). Extracts were made by maceration method with a solvent concentration ratio of 1:12. Determination of antioxidant activity was carried out by UV-Vis spectrophotometer using the DPPH method (2,2-diphenyl-1-picrylhydrazil)) using quercetin as a comparison. This study showed that the 70% ethanol extract of dragon fruit peel (Hylocereus polyrhizus Haw.) has moderate potential as an antioxidant and can be formulated into a peel-off gel mask preparation. The manufacture of peel-off gel mask preparations with variations in the concentration of PVA and propylene glycol affects the parameters of the physical properties and antioxidant value of the peel-off gel mask. The higher the concentration of PVA, the smaller the dispersion value and the faster the drying ability. While the administration of propylene glycol with a high concentration will produce a mask preparation that has a high dispersion value and the ability to dry will be slower. While the antioxidant value of the mask preparation containing 70% ethanol extract of dragon fruit peel will be better if the concentration of the PVA gelling agent is higher than the humectant propylene glycol.