Who uses any of these commercial products? How well do they work?

they work good but all they are is ISo Alcohol and efferdent. the 420 formula is even the same color as the blue denture cleaner and Iso alcohol. if your gonna try one use the one with the scrubbing crystals or you could just spend about 3-5 bucks on a bottle of Iso alcohol and some efferdent. I find the iso alcohol is enough just soak it for about 6 hours then scrub with an old tooth brush.

go with formula 420. totally worthy the money but watch out for smells and stuff

go with the f420, they also have a more organic one now, but the stuff works in just minutes, I used to spend hours cleaning and now can do it in under 10 with the stuff. Switched to it years ago and love it.

Formula 420 is crazy crazy effective .
1 min. in a zip lok bag w/ just a lil bit n shake the shit out of it and your piece looks like the day you bought it .
Peace
Crispi

I can deffinatly recommend ROOR bong cleaner.
http://boards.cannabis.com/recreatio...g-cleaner.html