I have used Elasticiser in the past, in fact this post made me dig mine out. I put it on damp hair for about 2 hours, then washed and conditioned it. It does feel more silky ish, but not sure if it is worth the money. I never used up the whole pot several years ago, so it obviously wasn't that wonderful for me. I will see how long it lasts. I think it's important to leave these products on for quite a time, not just 20 minutes.
Sometimes I use coconut oil, left on all night. That does improve it and is cheap. I used to like Henara treatment wax but sadly no longer available.
I too love my Babyliss big hair rotating brush.