So far, so good
I have thinning, baby fine, 3B curls that frizz easily.  I used this treatment and it certainly took my curls away and made my hair smooth and shiny.  It smells kind of bad though, powdery and old ladyish during the treatment and for 2 days afterwards, even with washing with sulfate free shampoo.  My hair is super shiny now and is looking better.  The first 2 days after treatment my hair looked really thin, baby soft and flyaway and straighter than ever!  I am liking it better as the body and wave are slowly returning. It still seems thin.  I'll use it again.  I like that it is forymalydehyde-free and you don't have to keep it in your hair for 3 days like other salon treatments.  The salon treatments gave me face flushing and sweating reactions from the formalydehyde and smelled awful as you flat ironed it--toxic fumes!  None of that with this product--just that crappy powder smell and more straightening results.  The shine is similar.  Expensive, but I used a quarter of the bottle.
Rating: 4 stars