Atomic Turquoise is a bright, neon, radiant aqua blue hair dye with green undertones. Welcome to the wonderful world of Manic Panic semi permanent hair colour. You have come to the right place for the richest, boldest, brightest, not to mention punkiest hair colour on the planet! These dyes can last up to 3-4 weeks with proper care. Manic Panic products are NOT tested on animals and the dyes are vegan friendly!