Introduction- Bleaching is done to manage discolored teeth. Free radicals released by bleaching agents break down the stains and lighten teeth. These free radicals interfere with the bonding of composite to tooth and may result in microleakage at the tooth-composite interface. Use of antioxidants have been recommended to remove free radicals and immediately bond composite to tooth. Aloe vera is rich in antioxidants. Hence, the study was undertaken to evaluate aloe vera as an antioxidant post bleaching. Aim-The aim of this study was to evaluate the neutralizing effect of aloe vera on the microleakage of composite restorations in endodontically treated teeth after intracoronal bleaching. Materials and methods- 50 single-rooted, single- canal premolars were endodontically treated and divided into 5 groups (n=10): Group A- no bleaching was done and composite was immediately bonded. Group B- bleaching was done and composite was immediately bonded. Group C- bleaching was done and composite restoration was delayed for 2 weeks. Group D- post bleaching, 10% sodium ascorbate solution was used for 30 mins followed by composite bonding Group E- post bleaching 10% aloe vera solution was applied for 30 mins followed by composite bonding. Specimens were subjected to microleakage test for 2 days and then longitudinally split. Microleakage was tested under a stereomicroscope. Statistical Analysis- Data was analyzed using Chi-Square test, Kruskal-Walis test and Mann-Whitney U test. p value was set at<0.05. Results: Comparison of dye penetration among all the groups was done using Chi-square test and a statistically significant difference was found between the groups. (p<0.01) Group A (mean= 0.40) and group C (mean= 0.45) showed similar microleakage values while the microleakage seen in group D (mean=0.70) and group E (mean= 0.75) was greater than group A and C, but it was not statistically significant. Group B shows the highest microleakage (mean=2.15). Thus, a statistically significant difference was seen. (p<0.01) Conclusion-Delayed bonding and antioxidant application can significantly reduce microleakage after non-vital bleaching. 10% aloe vera is effective as an antioxidant for reducing the microleakage.