I basically can't use any other bleach or bleach kits anymore, because this one is a game changer. Not once have I had any problems with breakage or dry, unhealthy hair afterwards. The color comes out so even every single time, which is genuinely impressive because I'm a very lazy hair colorer and generally give up on the brushes after about 5 minutes in favor of my hands. But it covers everything, leaves a very even, light blonde tone with very little yellow, and somehow leaves my hair feeling just as healthy as it was before use. Pretty sure this is witchcraft but I'm certainly not complaining lol. 11/10, cannot stop recommending this to people.