Not Recommended, especially for hard water ?
This Dreadlock Shampoo is made by using saponified oils. Saponified oils are often terrible in hard water because the minerals in hard water greatly reduce the cleansing properties of the shampoo and also leave a film of soap scum on your hair.
We also expect the pH of this particular shampoo to be higher than what is recommended based on the ingredients and use of saponified oils.
Therefore, we do not recommend this shampoo for long term use.