After running out of the over priced salon conditioner that i THOUGHT i neeed, I decided to use the trial-size bottle of Infusium 23 leave-in treatment sitting in my medicine cabinet. I was worried it wasn't going to work and I was going to have a hard time with my hair the next morning, but I had nothing to worry about! I straighten my hair with a flat iron and the infusium makes my hair really easy to straighten, and leaves it very smooth and sleek without weighing it down. I love it! and am relieved I have been able to find a conditioner for less than half the price of the over priced conditioner I have been tricked into buying for so long!