The thick foam expands and saturates evenly, ensuring full coverage - even at the roots and along your parting. DEVELOPER: AQUA, HYDROGEN PEROXIDE, STEARTRIMONIUM CHLORIDE, CETYL ALCOHOL, CETETH-40, STEARYL ALCOHOL, MYRISTYL ALCOHOL, CETRIMONIUM CHLORIDE, ETIDRONIC ACID, SODIUMHYDROXIDE, ACETAMINOPHEN, SALICYLICACID.