In general electroweak models with weakly coupled (and otherwise arbitrary)
Higgs sector there always exists in the spectrum a scalar state with mass
controlled by the electroweak scale. A new and simple recipe to compute an
analytical tree-level upper bound on the mass of this light scalar is given. We
compare this new bound with similar ones existing in the literature and show
how to extract extra information on heavier neutral scalars in the spectrum
from the interplay of independent bounds. Production of these states at future
colliders is addressed and the implications for the decoupling limit in which
only one Higgs is expected to remain light are discussed.Comment: 14 pages, LaTe
