Im addicted to this shampoo.THe first volume shampoo that actually gives my fine flat hair the volume I want and it lathers like silk on my hair. 250ml is relativly a small size for a shampoo but as unbelievable as it sounds, I bought my first bottle in May this year, I shampoo every second day and at present my tiny little shampoo bottle is half!!!! Because its a professional product its vey concetrated and you dont use as much as a regular shampoo.