I use chagrin valley shampoo bars and they made my curls a lot tighter. That could just be me but the natural route that I was taking gave my hair a lot of new growth and they are much tighter curls than I used to have! I love the chagrin valley shampoo bars but I have to finish with an apple cider vinegar rinse (I have hard water) and I don't know if it's safe to do during pregnancy. (Silly I know but i think its better to be safe than sorry) Another thing is they give you a waxy/oily scalp for about a month while you are transitioning to the bars but once that is over you should love the results!