The main function of the liver is the detoxification of the body. In a standard conditions this task is not easy. However, during the regular supplementation and increased, intensive exercises this situation becomes even more complicated, because the liver is working several times harder. Therefore, to support and protect this organ it is worth considering the introducing of specific supplementation. Cysteine, alpha-lipoic acid, vitamin C, E, beta-carotene, zinc and selenium are substances that are strong antioxidants, and they increase to the synthesis of key immune system chemicals. And with regard to liver regeneration, the extract of milk thistle seems to be indispensable. It is worth to add also the mixture of herbs (Picrorhiza kurroa, Andrographis paniculata), which will intensify the support functions of detoxifying effect of the liver.