  In this paper we argue for existence of an intrinsic mass scale in QCD
factorization and present a possible origin of it. Values of this scale are
within the Non-Perturbative QCD mass range. It differs from the known
factorization scale which is within the perturbative mass range and dependence
on which vanishes in the factorization convolutions. We show that the intrinsic
mass scale plays the key part in reduction of KT Factorization to Collinear
Factorization: such a reduction can be done provided that dependence of the
non-perturbative inputs in KT Factorization on invariant energy has a
sharp-peaked form. In this case the intrinsic mass scale is associated with
location of the peak(s). We also present models where the intrinsic scale is
generated by such peaks.
