PhytoSpecific Index 1 and Hair Color

I think you have to wait for at least 2 weeks before the second treatment. I amnot a 100% sure though.
Two weeks ago I had my hair relaxed at home using PhytoSpecific Index 12. I can tell you about the relxer but not colouring as I never colour my hair.
I hope someone can help you with some more info.
This might answer your question.
http://www.phyto.com/phyto_products_specific3.htm

Hi SmurfytTy,
This is my third use of PhytoSpecific Index 2 on my natural curly/wavy hair.
A professional hairdresser did the first time but it wasn’t that straight and did not last for more than 5-6 weeks before the effect was going.
My partner did the second time at home. It came out a lot better than the first time but again it was only 6 weeks and the effect of the relaxer was starting to loose it.
I have to mention that my hair was always super shiny and soft after using PhytoSpecific.
The third time was 2 weeks ago.
This time I left the solution in my hair 15 minutes longer than it suggested.
I got burnt a bit but it was a matter of 3 days before it was gone.
My hair now so straight and the best so far, so shiny and soft. I don’t even wash it everyday. It even looks better the next day.
I know I was not supposed to leave the solution in my hair for longer than suggested in the instruction but I was ready to cut it all off if hadn’t worked. I am a guy so it would not have been a problem to cut it all off. you have gotta be careful.
Oh, I only use quarter of the product and that is enough for my short hair.
It is important to use the right products to maintain it.
Please let me know how you go and how you find the product.
Good luck and be careful.

ChicagoSarah, there is a post on CurlyHair message board about Phytospecific relaxer and colouring. Please read it.
Try this link
http://talk.hairboutique.com/forum/viewthread.asp?forum=AMB_AP627221160&id=100