Hey Trisha, 

I tried using baby shampoo once. After realizing that many of the shampoos I'd been using had detergents like ammonium laureth & lauryl sulfate and sodium lauryl sulfate in them, I wanted to try something else.
    The "gentle" ingredients in baby shampoo lured me in...but it turned out to be a verrrry bad plan. After just one washing, my hair felt gummy & dry as a bone - it was awful!! I guess in their conquest for pure, gentle ingredients, they also neglected to include good things...like conditioners, etc. 
    And don't be fooled by the "moisturizing" and "detangling" formulas either. With the exception of colour and fragrance, they are all the same exact formula. The one I  bought was "moisturizing" and it absolutely fried my hair.    In the end, I concluded that it was better to keep searching for a really great adult shampoo. 

Anyway, of course you can still try it out if you want. I'm just sharing my unfortunate experience.