I started using this set roughly 6 weeks ago and it has worked great. Before I started using this, I would have really bad dandruff and I tried EVERYTHING to get rid of it. Nothing worked. I asked my hair stylist what I could use because it was getting way out of hand and she recommended I use this. After the first use, my dandruff was gone. It was like I'd never even had any. Up until recently I haven't had any problems but the dryness I have now may be due to the fact that I sunburned so bad I even burned my scalp!