I've had atomic pink in for three months soon and I'll dye it again tomorrow but I was wondering, because of the bleach my hair is very crispy and dry and I can only use regular conditioners (not color keeping ones) because I have very sensitive skin. But will regular the body shop conditioners make my hair fade?
And I red somewhere ages ago that I could apply some of the leftover dye to my shampoo, and that would make it stay in longer but that was on the manic panic site, and I don't know if it's really true either. So is it? :p And if it is, can I do that to the conditioner? :)

From what I've read some people put colour in their conditioner so that each time they wash their hair they put some more colour in. I haven't done it myself so I'm not sure. Maybe use something that protects against heat and a shampoo for dyed hair. Shampoo is what usually makes the greatest difference for me, since that's when much of the colour comes out. Besides, Atomic Pink is supposed to last ages on its own, don't think regular conditioner will make much of a difference.

I agree, if you can use a shampoo for coloured hair use that and if not pH balanced baby shampoo should help.
Any conditioner is better than none. If your hair is a bit crispy try using one for dry hair. Adding a bit of colour into the conditioner will help but don't put too much in or you'll get a residue on your hair.