I received two samples of Head & Shoulders Full & Thick advanced thickening tonic. They send me the tonic and the shampoo. I don’t know how anyone can give a review besides that it smells good. As you can see, it was going to get me through a hair washing, and that’s where it ends…one washing. I thought there was no way I could tell you if the tonic worked or not, but praise Procter & Gamble! I woke up with a full head of hair as thick as a lions mane! If I could give 100 thumbs up, I would!”