This stuff is awful. I bought the whole line and after a month using it my hair was breaking worse than ever. So much so that the right side was 3 inches shorter than the left and I had to go in and get about 4 inches cut off to even everything out. I was using the shampoo, conditioner, deep conditioner, leave in conditioner, and the anti-breakage serum. I wasn't using it all at one time. I'd only deep condition a couple times a month and the leave in conditioner and serum we for no hair washing days. My hair breaks weren't that bad to begin with mind you, they were just on sale at Sally's Beauty and I figured why not.