I have used Infusium 23 leave in conditoner on and off for more than 20 years. 

It leaves my hair very shiny and manageable.

During  the periods of time that I didnt use Infusium 23 "leave in" conditioner my hair suffered ...don't know what I was thinking by using other products. I am a customer for life!

It is easy to use; just apply after shampooing and let it dry or style a you normlly do.  Judge for yourself; after one treatment you will love it too.