I really want to go back to swimming a couple of times a week. It's the best cardio in my opinion, but I'm worried about the having to shampoo out the chlorine. If I swim more than once in the week, will it be bad for my hair to use the non-sulfate shampoo that many times? Will that shampoo be able to get the chlorine out? I go home and look at the pool every day, and avoid it for this reason only. (sigh) If anyone has any insight, pls advise. thx!