Microcapsules comprising a core of fragrance and a shell of aminoplast polymer, the composition of the shell being from 75-100% of a thermoset resin comprising 50-90%, preferably from 60-85%, of a terpolymer and from 10-50%, preferably from 10-25%, of a polymeric stabilizer; the terpolymer comprising: (a) from 20-60%, preferably 30-50% of moieties derived from at least one polyamine, (b) from 3-50%, preferably 5-25% of moieties derived from at least one aromatic polyol; and (c) from 20-70%, preferably 40-60% of alkylene or alkylenoxy moieties having 1 to 6 methylene units, preferably 1 to 4 methylene units and most preferably 1 methylene unit; the microcapsules additionally optionally comprising up to 25%, preferably up to 10% of a cationic polymer. The microcapsules are useful for the storage and dissemination of fragrance in various products, such as laundry products and fabric care products.