Infusium is a moisture replenisher. It takes out knots after your shower. In our opinion, it totally works. This bottle has 225 ml of product in it and it is easy to use. All you do is spray, wait a few minutes for the product to soak in and then just brush your hair out. The price is about $5.00-$7.00 so it is kind of expensive. You can find it at walmart and any drugstore. Overall it is a great product and we will continue to repurchase it.