Microcapsules for use in liquid detergents having a core and a polyelectrolyte complex shell in the form of a semipermeable membrane capable of withstanding a force before bursting of from about 20 mN to about 20,00 N and having a density of from about 900 Kg/m.sup.3 to about 1,300 Kg/m.sup.3 at 25.degree. C. The invention also relates to a process for making the microcapsules and liquid detergents comprising said microcapsules.