A stabilized aqueous hydrogen peroxide composition comprising an urethane groups containing polymer encapsulating a mixture comprising at least hydrogen peroxide, water and poly(ethylene oxide) homopolymer, or for forming a matrix comprising a mixture of at least hydrogen peroxide, water and poly(ethylene oxide) homopolymer is disclosed. The composition comprising 2 wt. % to 30 wt. % of hydrogen peroxide, an amount of water, 1 wt. % to 10 wt. % poly(ethylene oxide)-poly(propylene oxide) block copolymer, 0,01 wt. % to 10 wt. % of a salt of a polymer or co-polymer comprising at least one urethane group based on at least a taurate, taurate salt, 2-alkyltaurate, 2-alkyltaurate salt, 2,2-dialkyltaurate, 2,2-dialkyltaurate salt or a mixture of at least two of the aforementioned taurates and at least an acrylic acid, acrylic acid derivative, co-polymer of acrylic acid and at least one ethylenically unsaturated monomer or a mixture thereof, wherein the alkyl is selected from methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, tert-butyl groups, and wherein the salt is selected from ammonium, alkali, earth alkali or zinc salts of these polymers or co-polymers, in particular ammonium or alkali salt of a copolymer of acryloyldimethyltaurate and vinylpyrrolidone, and 30 wt. % to 95 wt. % poly(ethylene oxide) homopolymer, 0,01 wt. % to 5 wt. % stabilizer system comprising 0,1 to 2 wt. % and 0,01 wt. % to 1 wt. % of a chelating agent or a mixture of chelating agents, wherein the composition comprises in total 100 wt. %.
