. Further study is needed to confirm whether the extension of study periode to 6-8 weeks or the increase of the dosage of EMR would normalize the MDA levels. During this study, no adverse events were found. The dose of EMR used for human in this study was based on bioavailability and toxicity studies in rats. Although liver and kidney function were not explored to confirm any organ damage related to EMR administration, there were no subjects reported any sign and symptom of organ dysfunction during 3 weeks of study and one month afterward. EMR capsules have been marketed for years and so far we do not find any reports from Indonesian National Agency of Drug and Food Control regarding to its side effects. From the present study, it is concluded that oral administration of extract of mangosteen rind decreases acne severity in patients with mild and moderate acne vulgaris better than placebo