I used this shampoo when first advised by my hair dresser for breakage due to colouring. I use a bit and it lathers so well that the $15 for about 1 litre lasts me almost 1 year! The smell is great I really love it. I only need a bit of conditioner and it lathers well too so I'm using a huge amount, and my hair is to the middle of my back. I also have curly hair and I find it fights off frizzies pretty well considering it isn't made for that. If you have coloured hair that is prone to breakage, this is a great product!