never had this problem before...
Dreads Hair and Scalp Health
id absolutely recommend these then www.dreadlockshampoo.com
Well i know that's high, its flat rate shipping so you can get 4 or more in a box before shipping goes up so that's what most do... get 4-6 months worth at a time
if you find a hand made dread shampoo over there post it.. some might not work in hard water