My favorite hair balm is Kerastase Extensioniste. Until I started to use the Kerastase hair balm, I used the Moroccanoil Hair Conditioner. I liked it, but then I’ve discovered the Extensioniste line and I liked it better. I always use the Kerastase conditioner after I use the Kerastase Extensioniste shampoo. I always leave the conditioner for a few minutes. It is very hydrating, but doesn’t weight down the hair. It also leaves the hair very easy to comb and gives a nice healthy shine. It also smells nice.