I was in one of our local organic stores (The Green Life Market) and saw some tea tree oil care products towards the front. They were Avalon Organics. I can't remember if I saw the peppermint/tea tree oil shampoo in the actual store or not, but I definitely saw at least the tea tree oil shampoo. I was wondering, are these alright for dreads, or should I just stick with making my own solutions? Also, I'm not sure if they're technically residue-free or not, since they don't come out straight and say it.