Oxidative stress refers to the exposure of cells to high concentrations of reactive oxygen species caused by cell damage. We tested the concentration of oxidative factors in the serum of each experimental group (Fig. 3). There was no significant difference in GSH between the high-dose group and the normal group (P>0.05), but the low-dose group remained at the level of the model group (P>0.05). Superoxide dismutase (SOD), MDA and·OH levels did not return to those of the control group, but the high-dose group was significantly closer to the recovery value. Experimental results showed that citral increased the concentration of GSH and SOD, which reduces the concentrations of MDA and·OH; there was a significant dose-dependent effect with both intramuscular and oral administration. Amelioration of oxidative factors took place soonerintheintramuscularinjectiongroupthanintheoraladministration group. The results showed that citral exerted antioxidant activity.