CyndeeCyanide
Posts: 87
Location: Milwaukee.
Current Hair: Pastel and Neon Pink.
I'm currently sporting a rather fantastic pastel pink that I got by diluting a very, very small amount of Atomic Pink with half a giant bottle of Pantene Ice Shine Conditioner. I've had it for a bit over three weeks now and, being AP based, it has barely faded, though it's lost a bit of the slight neon glow that it initially had.
Also, if you plan on dying your hair pastel pink, I highly reccomend toning your hair before hand. I didn't and my roots were rather peachy for the first couple washes. And to keep from turning peachy, put a few drops of lavender hair dye in your conditioner (I use SFX Joyride, which has the added bonus of being a pinker purple) or use products designed for bleach blonde hair (I know Sally's has a decent line) or grey hair.