I have a tingly peppermint shampoo from Trader Joes, but I used to get dread shampoo from a store on etsy, that was in the form of a soap bar. I will go buy some shampoo from the link you've provided!
I have never used wax, as when I researched before starting my dreads, I read bad things about it. So, wax has never touched my hair. I have palm rolled at the beginning, but never do that anymore because I also read that could go either way, and so I just leave them alone now, besides separating them when needed.
I am Cherokee and Blackfoot. But my most Native side is Cherokee. I belong to the Wolf clan.