Features of hydrogen peroxide: 1) Containing natural vegetal active component,silk protein,quick reconstucted gene can protect hair scalp from damaging when dying. 2) Stabilized in processes of oxidation and bleaching 3) 3% (10VOL), 6% (20VOL), 9% (30VOL) and 12% (40VOL) available. 4) Volume: 1,000ML 1000ml/bottle, 18 bottles/ctn Size of carton(cm):53*26.6*28.6