I don't think the liquid variety from the research websites is nearly as strong as the retail product. I've only tried the aqueous solution though.
I use it at .5mg a day when the tren gyno starts up. There are supposed to be some positive sexual side affects to this drug, but I didn't notice any. I would only buy this if you were going to be using tren as that's about all it's good for unless you try the retail version.