I bought the L'oreal perfect blonde bleaching kit a week or two ago to dip dye my hair. Since i was only dip dying it, I only used ONE of the two powder sachets and HALF of the tube of bleaching cream. I put both in the developer cream bottle, used some of it, then threw the rest out. It worked really well but now I want to do the ends a little bit more, I have a full sachet of bleaching powder and over half a tube of bleaching cream, could I mix those two together and just use those? Or can I buy a separate thing of developer cream elsewhere? Or will I just have to buy a new pack entirely? Thanks x