RETRACTED: Lee et al. Lemon Balm Extract ALS-L1023 Regulates Obesity and Improves Insulin Sensitivity via Activation of Hepatic PPARα in High-Fat Diet-Fed Obese C57BL/6J Mice. Int. J. Mol. Sci. 2020, 21, 4256. Here, PPARA is linked to obesity due to melanocortin 4 receptor deficiency.