Effect of Glycerin as Plasticizer in Formulation of Grape Seed Oil (Vitis vinifera L.) Emulgel Peel-Off Mask

Abstract

Grape seed oil (Vitis vinivera L.) is known to contain phenolic compounds with antioxidant properties that can be used as cosmetics, especially for skincare. A peel-off type of emulgel mask has been developed using grape seed oil as an active agent and glycerin as a plasticizer. This study was aims to determine the effect of glycerin as a plasticizer on the physical properties and stability of the grape seed oil emulgel mask formula during storage. The emulgel begins with the formation of an emulsion and then mixing with the Hydroxypropyl Methyl Cellulose (HPMC) gel base. The formulas were made in five various glycerin concentrations. Evaluation of organoleptic and the other physical characteristics were observed for 4 weeks at two temperatures (25 °C and 40 °C). Elongation and tensile strength tests were also evaluated due to the role of glycerin as a plasticizer. The statistical analysis on the physical stability showed that there were no significant differences for all formulas. The speed of drying the mask is in the range of 10-25 minutes. Elongation test results showed there was no significant difference between formulas, but a tensile strength gave significant differences. Based on the results of the above analysis, it can be concluded that the glycerin as a plasticizer has no significant effect on the properties and physical stability of the preparation, but has an effect on the attractiveness of the grape seed oil peel-off emulgel mask.