[Korms]

No, mine didn't (I was going from red, which I explained a few posts back) it went golden blonde immediately after then oxidised to a light red-brown. Subsequant removals got me to a pale golden brown. It could have been for a number of reasons, maybe I didn't have as much dye to remove from my hair so there were less of the colour molecules to re-oxidise. The hair returning to the colour it was before is not a result of the colour remover not working, it is normally because of the amount of pigment in the hair that needs to be removed. The remover causes the colour molecules to shrink, not to be stripped like with bleach, so they are small enough to be washed from the hair. If there is a lot of pigment, and thus molecules, in the hair the rinsing process may not reach all of them and the cannot be removed. So once the remover is rinsed the hair may look lighter because the molecules have not returned to their normal size, but one re-oxidisation takes place they swell and the pigment returns, there is just less of it than last time so repeated removals eventually clear the hair of colour.

That is my understanding of it anyway.

This YouTube video kind of explains what I mean about the colour molecules shrinking. See how the water turns clear?

YouTube - Color Vanish - Hair Color Removal

And what she says about it being "magic", it's really not, it's chemistry. Haha.