Just took my first dose of Clen ever, 40mcg., that I bought from ToastyNoodles (Swap Meet).
The bottle was unlabeled, but @ 200mcg/ml and 60ml it is probably either Aquachem or Hel Fire Labs.
Anyhow--I've got a long history of stimulant use, and I took this after getting just 4 hours of sleep. WOW-->this stuff rocks. I have been totally awake and focused all day. (I just started PCT today, too). It feels like the focus you get from Ritalin, i.e. no jitters (at least not yet!).
I'm going to ramp slowly, as I play guitar professionally and the last thing I need is for my fingers to start fidgeting on me during a gig!
I wish I knew the exact lab so I could give feedback. It's a great product.