  Starting from the new sources of $LL$- and $LR$- scalar (slepton) mixings due
to R-parity violation, we discuss the structure of lepton-flavor violation
focusing on the radiative decay of muon into electron. Using an optimal
parametrization, we give the general formulae for the one-loop contributions.
from which we discuss all combinations of R-parity violating parameters having
possibly a substantial contribution to the $\mu \to e \gamma$ decay width. An
exact numerical study is performed to obtain explicit bounds on the parameters
under the present experimental limit. The most interesting one involves a
combination of bilinear and trilinear couplings.
