Determination of Physical Stability Spray Sunscreen of Extract Wungu Leaf (Graptophyllum pictum (L.) Griff) with Varied Concentrations of Glycerine as A Humectant

Abstract

Sunscreen is a preparation intended to counteract, reduce the effects, and protect the skin from ultraviolet (UV) radiation. Wungu leaf is one of the plants that contain antioxidants that can be used as a natural sunscreen preparation. In the manufacture of sunscreen, spray wungu leaf extract required additional materials in the form of humectants. Glycerin was chosen as a humectant with varying concentrations of 5%, 10%, and 15% in the formulation of a spray sunscreen which aims to improve the quality and maintain the stability of the resulting preparation. This study aims to determine the physical stability of the spray sunscreen preparation of wungu (Graptophyllum pictum (L.) Griff) leaf extract with varying concentrations of glycerin as a humectant. Spray sunscreen of wungu leaf extract was made in three formulas with variations in the concentration of glycerin used. The formulations that have been formulated are tested for physical stability by using the cycling test method for six cycles, and testing includes organoleptic, homogeneity, pH, viscosity, and diameter of the spray pattern. The organoleptic, homogeneity and pH tests of the preparations showed no significant changes after the physical stability test was carried out for six cycles with a significance pH value of 0.079 (<0.05). The resulting value still met the pH value criteria for topical preparations. The results of the viscosity test and spraying pattern showed an increase in the viscosity value and a decrease in the diameter of the spray pattern with a significant change with a significance of 0.01(<0.05) and 0.008 (<0.05). However, this change still met the physical criteria for topical preparations. Based on the study's results, it can be concluded that the spray sunscreen preparation of wungu leaf extract (Graptophyllum pictum (L.) Griff) with variations in glycerin concentration has good physical stability.