US Patent No. 9,492,370 B2; AmorePacific Corp.
has patented a carrier for a cosmetic composition comprising two or more layers of foamed urethane that are impregnated with a cosmetic composition, wherein the cosmetic composition is discharged from the carrier to a puff. The foamed urethane comprises polyether-based foamed urethane. The foamed urethanes are different from each other in at least one selected from the type of foamed urethane, number of pores per inch of foamed urethane, pore size and layer thickness.