Really I haven't heard of anything but BioSpira working remotely consistently. And there are still quite a few people that have gotten bottles of BioSpira that didn't work.
If the brands that GoldLenny mentioned above are like BioSpira then they're probably somewhat reliable too.
I personally do NOT trust anything in a bottle to kickstart a cycle. Even if it's something that's worked for people before, I have no clue how the stuff has been handled or stored.
And even if I did use it I would NOT add fish without determining whether the stuff was actually working, unless I planned on doing an all out fishy cycle when the stuff failed.
Myself, I haven't had the opportunity to try most of this stuff since I have so much already established media I have no need to cycle an aquarium. I stick the established media on the tank, add fish, and only a couple of times have I had ammonia or nitrite register (in low amounts) on my kits, due to me adding too many fish for the amount of cycled media.
When I had all my tanks set up with hang on backs and canisters I would run large amounts of filters per tank to establish colonies, in case I decided to set up a tank in the future (because I hate doing a full cycle, I'm impatient), so I'd take a filter or two off and stick it on a new tank so I could add at least a few fish right off the bat.
So in other words, I trust established bacteria colonies that have been working on other tanks before I'd trust something that comes out of a bottle.