Manic Panic Amplified Formula Semi-Permanent hair colours that last 30% longer!Created especially for MANIC PANIC devotees who seek more permanence from their semi-permanent colour. In 13 of our best selling shades plus 2 super-naturals, we present a new formulation that is the same gentle-to-the-hair dye with all natural ingredients that is now stronger and longer lasting! Not tested on animals and contains no animal products. Look for the new shimmering silver label with the AMPLIFIED stamp!