I co-wash my hair a few times out of the week and wash my hair with shampoo once a week or every 2 weeks depending on what I put in my hair. I haven't had any product build up since going natural by doing this.

http://www.naturallycurly.com/curlta...ily-world.html

http://www.naturallycurly.com/curlta...ve-styles.html