The formulation of the cosmetic lotion provided in this study was designed for testing the stability of AA-2G. Therefore, only basic components were included. The cosmetic lotion which included 5% (w/w) of AA-2G was prepared by mixing solutions A and B. Solution A: AA-2G was dissolved in water then citric acid buffer and 10% of KOH solution were added. Solution B: Methyl paraben and propyl glycol were dissolved in water.