TweetInjectable is slightly more efficient, but T3 and clen are pretty cheap so I'd say just use tabs and take a little more.
Anything over the counter won't work nearly as well as AAS. And 1/2 of that crap doesn't work at all, the other 1/2 only make for slight if noticeable at all gains. You'd see more benifit from adding some extra protein to your diet.