Shampoo to use after Keratin Process

To help maintain your Keratin conditioning process you need to use a shampoo that does not contain sulfates. I had been using Pureology anti-fade Hydrating shampoo but I had some trouble washing the shampoo out which caused serious flaking. The new non sulfate shampoo that I find is very good and does not cause the flaking is made by Kenra, Color Maintenance shampoo. The conditioners can be whatever works for you, I have used Bumble and bumble or Phytobaume Conditioner.