I recently purchased me some PH balanced shampoo from puritan, the smell is not the best as I can tell it is all natural ingredients, and it's not a well known brand but I did purchase it since it's natural and according to what I have heard and seen here based on biotin vitamins.
Since I don't like taking pills often I found me some shampoo containing biotin.
But you should be able to find you some PH balanced Shampoos and conditioners at your local beauty Supply.
Ask them to recommend you some.
http://www.puritan.com/biotin-for-hair-940?Mcid=70&beautyhome - http://www.puritan.com/biotin-for-hair-940?Mcid=70&beautyhome
I should have gotten the one of that page but instead I got the one made by the company itself, but on my next trip I will try that one.