  Weyl invariant theories of scalars and gravity can generate all mass scales
spontaneously, initiated by a dynamical process of "inertial spontaneous
symmetry breaking" that does not involve a potential. This is dictated by the
structure of the Weyl current, $K_\mu$, and a cosmological phase during which
the universe expands and the Einstein-Hilbert effective action is formed.
Maintaining exact Weyl invariance in the renormalised quantum theory is
straightforward when renormalisation conditions are referred back to the VEV's
of fields in the action of the theory, which implies a conserved Weyl current.
We do not require scale invariant regulators. We illustrate the computation of
a Weyl invariant Coleman-Weinberg potential.
