Okay, I'm still confused. I'm just talking this out Kaddy, not at all directing my doubt towards you in a personal way. /images/graemlins/kiss.gif I appreciate you calling and seeking further clarity.
The inductor has to be of differing strengths b/c the ingredients are the same for both products. So the inductor has to be weaker on the Index 1 otherwise they'd just have one formulation. And this part about depending on your hair /images/graemlins/huh.gif . The pH of your hair may differ from anothers, but they should be able to determine the pH of their own product when mixed and before application. How is that variable? Everyone else can make this determination. But really, I'm stuck on the same issue, how could both indexes be exactly the same??
Re: the list
There are a few threads, one doesn't have Phyto but the other does. It's really old, its from the BHSGO Subgroup as Sassy stated.