The BL Lac 1ES 1426+428 is an extreme object, with the hard synchrotron component peaking at energies at or above 100 keV, resembling the hard states of Mkn 501 and 1ES 2344+514. We have observed it with INTEGRAL: the detection confirms the earlier interpretation of the BeppoSAX observation. Here we collect other available X-ray observations of this object, from the historical ones, to the ones obtained with the current satellites, to study the long term variability pattern. We will then compare it to the behaviour of other "high peaked" objects.