Cobra AMPLIFIED is a light cocoa brown hair dye with chestnut undertones! For best results use on pre-lightened hair! Cobra has a warm undertone so it should work well on most blonde hair levels! If you’d like to punch up this brown to make sure it will cover your base tone, try adding in a few drops of Raven or Blue Panther to your mix (especially If you're using on unbleached, virgin hair)!