If you're looking for recommendations on thermal paste, these threads are a good place to start. This questions gets answered a lot, best thing to do when posting a thread is doing a quick search first.
Now if you have further questions, or something more specific, carry on.
yes its true it does indeed work but its only temporary.
I'd only use this if you have no proper paste to hand, which will buy you time to get some.... :lol:
I personally use Coollaboratory Liquid Pro/Ultra on my CPU (Ultra is only 1€ more than Pro where I live so meh)
It's perfectly safe to use. Just make sure it doesn't get in contact with aluminum.