will my dreads fatten up?

yeah the chems worry me a bit to can't go wrong with natural stuff with a minty zing to it,whats different between dr bronners and other dread shampoo?
updated by @ash: 07/10/15 09:42:09PM

arggghhh just checked out sun & earth and 7th gen, but they dont do it in the uk think we get method tho

ye go natural, i used the crochet method and my locs were tight and hard. after i stopped with the crocheting i went with the natural way now my dreads are soft and thicker, they just need to lock some more