I had gotten samples of a few Sebastian shampoos and conditioners a while ago, and I remember thinking this one was a favorite, plus seeing all the good reviews seemed to be a good sign. So when there was a liter sale, I grabbed it. I used it for about a month and I started noticing my hair was getting really dry and frizzy. I didn't think it could be this, but I paid attention to what shampoo and conditioner I used. (I switch around, but the rest weren't new ones other than the Penetraitt Conditioner.) The days I didn't use this, my hair seemed MUCH better. I have dry and frizzy hair anyway, but certain products keep it nice. I thought this would be one, but it turned out it was a big fail for me. I did like the smell though, and I felt it cleaned my scalp relatively well. I also did keep the conditioner, which seemed to work for my hair. So I'm just one person, but it didn't work for my hair type, unfortunately.