it works [SEP] depending on the saturation of your color it does the job well enough i needed it to get out green i am on the treatment and will need one or two more green is the worst to get out it seems but originally it was supposed to be a blue teal but it immediately went to green i tried a lot of different things since the hair dressers near me have been booked solid for months nowso this stuff works be patient leave on more than the directions are sooo tiny mix both together same amount each bottle mix into hair leave on to it will probably burn ur scalpalso it smells like freaking chemicals and vomit have a strong stomach the smell is aweful