Formulation and Physical Stability Test of Facial Gel Wash Dragon Fruit (hylocereus polyrhizus) Peel Extract

Cosmetics are a necessity in everyday life. Cosmetics are divided into two types, namely cosmetics for care (skincare) and decorative cosmetics (make-up). The facial wash is a form of cosmetic care to clean the face which can be in the form of foam, cream, and gel. Gel is a preparation that has good distribution, the good release of active substances, and is easily washed with water. This research is to formulate dragon fruit peel (Hylocereus polyrhizus) into a facial gel wash. Dragon fruit peel is a waste that is often ignored by the community. The dragon fruit peel was extracted and then made a facial gel wash formulation with three formulas, namely 8%, 9%, and 10% followed by physical stability testing. This study aims to formulate and determine the physical stability of the facial gel wash formulation of dragon fruit peel extract stored at three different temperatures, at room temperature, under the sun, and 40°C. The stability of the preparation was seen based on the results of organoleptic testing, pH, viscosity, and accelerated foaming before and after storage. The results of the physical stability test were statistically processed using the One Way ANOVA method. The results of this study showed that the three formulas, especially formula 1, were more stable at room temperature, under the sun, and 40°C.