I've been using it every time that I wash my hair, ever since February. For almost a year! This helped a lot with my hair loss and with dandruff. Usually I lose a lot a hair during the year, it just breaks off very easily. But I've noticed that ever since I've been using this shampoo the fall out has been reduce significantly! And m dandruff is completely gone. For a breve moment in time, I used one from Clone -- but it's not the same. Not at all.
Is it more expensive? Well, yes. This little bar of shampoo costs around 8€. But it lasts a long long time! This is the 4th bar I've bought this year.
One cool thing that I noticed: washing my hair with this shampoo, it seems like my hair doesn't absorve as much water. I don't know how to explain it better but when I'm blowing my hair, I feel like it gets dry much faster. I have no ideia, why. It's so cool.