I love this color! I mixed in 1/3 of Cyan with 2/3 Aqua to get a blue-turquoise color and I love it! I have noticed that the Cyan is a bit more green than I would like, but together it's almost a Fun Dip color in person. I would LOVE to try Sky Blue or Aqua by itself! I have noticed a small bit of fading but honestly my roots are more of a problem! You do not have to use developer for this, but for meduim thickness hair I used 1.5 tubes, get 2 tubes just in case!