  We apply Implicit regularization in the calculation of the one-loop graviton
and gravitino corrections to the anomalous magnetic moment of the lepton in
unbroken supergravity, which is known to be an important test for any
regularization method. We find a null result as it is expected from
supersymmetry. We compare our results with the ones obtained by using
Differential Regularization and Dimensional Reduction, which are known to
preserve supersymmetry at one-loop order.
