Manic Panic AMPLIFIED Dye - Shocking BlueManic Panic AMPLIFIED Dye Shocking Blue Shocking Blue AMPLIFIED is a dark cobalt blue hair dye. For best results, we recommend lightening hair to a very light cool toned level 9 blonde or lighter. All semi permanent blue hair colors can interact with yellow tones in bleached hair to create a green tint so make sure to do a strand test prior to applying all over to ensure you get the results you want! How many 4oz containers of Manic Panic toner should