not really anything you can get there
with only a couple exceptions
if you dont have hard water then dr bronners very diluted..if you do have hard water and most ppl do then your options are way more limmited
baking soda and acv thats the only thing you'll find at a local store safe for dreads
www.dreadlockshampoo.com i cant recomend this highly enough its great in any wayer type
most over the counter shampoos sare full of residues conditioning or toxic many all 3 or at least 2
theres 2 anyi residue or residue removing (clarifying) shampoos you can get at a shop but they are some of the most toxic shampoos of all and are only meant to be safely used a few times a year
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My new book Ban The Taboo Vol 1