Looks like the Lava was rebranded to Tatooworks...which ever name that is good stuff at 5X's refined.
I have Vector because we couldn't find lava for so long. Vector is refined 5X's too. It can be found on amazon all day long.
My old dentist uses a torch in part of his work...when he was about to refill I told him wait and ran out and got him the good fuel so he didn't have to use the cheap stuff. I explained WHY to use 5X's refined, and he figured I was right because his last torch quit working after he filled it a couple times with the cheap stuff.
Colibri sent me a can of their fuel, which I have not tried yet.
http://us.colibri.com/smoking-accessories/butane/butane-300ml-two-pack.html
They state: The Cleanest Butane Available - 99.9994% Pure