Jul 20, 2010 - I never got the hang of co-washing-- it left my 3c/4a kinks and curls looking dull and unclean so I tried this No-Poo. I tried the old type first and found that my hair was left nice and clean, shiny and without the feeling of residue from co-washing. I've been using it for about four months now and I like the new type better, it has a more pleasant smell and I feel like I don't have to use as much. I only wash 2x per week and I have no issues with build-up but I do clarify once per month. This is my go to shampoo and I don't think I'll ever change.