A foamed delivery system having at least two components: a foam and an
additive that is associated with, carried by or delivered by the foam.
The foam is a stable foam that has a liquid matrix, gas bubbles and a
structuring agent that forms a lamellar or vesicular cage structure
without generating a gel imparting a rubbery texture. The lamellar cage
structure entraps at least a substantial portion of the gas bubbles and
liquid matrix therein to retain the gas bubbles and liquid in a
sufficiently compact structure that substantially prevents drainage of
the liquid matrix and coalescence and creaming of the gas bubbles to
maintain stability of the foam even when the foam is subjected to heat
shock. Combined with the stable foam structure the distribution and
release of the additive during application is significantly improved.