I haven’t washed my hair with shampoo and conditioner in 4 weeks! About twice a week I have washed it with baking soda+water and then rinsed it with apple cider vinegar+water. While I can’t say that my hair has looked its best throughout, a couple days ago I noticed a difference in how it looks and feels. Understandable, it just takes some time, and several of the websites I consulted do say it takes about 4 weeks for your hair to adjust.
You should try it…it’s very liberating actually.