Lasts between 3-9 weeks on bleached hair， depending on the shade chosen.;Hair color will add energy and shine to natural hair or glowing colors on light bleached hair.;The more porous the hair， the more vibrant and longer-lasting the color will be.;For exotic， vibrant colors， bleach hair to the light yellow stage and apply crazy color cream without the addition of any other substances.;Comes in outer box containing 4 x 3.3 ounce bottles