This investigation had like purpose to determine the antirust effect of Lepidium's hydroalcoholic abstract meyenii Walp. “Maca purple ” in front of free radicals induced by acrylamide in liver and brain of rat. Lepidium's bulbs were used as biological material meyenii Walp and 24 female rats Rattus norvegicus stock Sprague Dawley of 16 to 18 elderly weeks and of 220 20 g. 4 groups, negative control ( CN ), positive control took shape ( CP ); Two experimental groups ( GE500 ) and ( GE1000 ). The antirust Effect was evaluated by the concentration found of malondialdehído ( g g ) in the liver textiles and brain, they appreciated to he significant differences ( p 0,05 ) between the groups applying the proof ANAVA so much for liver as well as for brain and, when courage applied the comparison of stockings LSD for liver statistical significant differences ( p 0,05 ) between CN and CP, CP ...