When I find something that I think works I enjoy sharing it with the Toplace community.
The stylist that cut-in my system (more or less) said that wearers and people that just color their hair should use a sulfate-free shampoo. Whether or not this is true I'm sure is up for debate. I did a Chaz Dean WEN review several weeks ago and this Loreal shampoo seems to do a better job at a much better price.
The name is L'oreal EverPure Sulfate-Free Color Care System. Rosemary Juniper. It lathers unlike WEN, but it seems to clean the hair just as well. This is available at Walmart for less than $5 for 8.5 ounces. It smells good but doesn't have the strong scent that WEN gets after a few uses.
If you want to try a different shampoo this is one I would recommend. WEN is $50+ dollars and this is less than $5. It's worth a try.
Sid