Lime peel (Citrus aurantifolia) contains flavonoids as antioxidants that prevent free radicals, and antioxidants are used to repair skin cells damaged by free radicals. Therefore, a research was conducted with the aim of formulating antioxidant cream preparations using lime peel extract. The extraction was carried out by maceration using ethanol 96% solvent, which was then fractionated with ethyl acetate as solvent. The ethyl acetate extract obtained was formulated into cream preparations with extract concentrations of 3%, 6%, and 9%. The formula obtained was tested for its physical and stability, and then for its antioxidant activity. The results showed that the physical properties of the cream preparation meet with requirements for the physical stability based on the organoleptic test parameters, homogeneity, pH and viscosity. Similarly, the antioxidant activity test of cream against the DPPH free radicals showed that formula 1 with an extract concentration of 3% gives an average IC50 value of 28.24 mg/ml; formula 2 with an extract concentration of 6% gives an average IC50 value of 22.97 mg/ml; and formula 3 with an extract concentration of 9% gives an average IC50 value of 14.80 mg/ml. Based on the results, it was concluded that the lime peel extract are formulated into a cream preparation with type M/A. Formula 3 with an extract concentration of 9% is the best formula with the greatest antioxidant activity.
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