I have never heard if this stuff. Sounds like a high priced alka-seltzer to me. Search for some unbiased trials on it. For the price of that shit you could prob find an emitter on egay and lease a small Co2 tank from a local welding or a restaurant supply for a little more than a box of that shit. I personally would just get the tank and use a "hillbilly" emitter(ur wrist) if $$$ is a serious prob, before buying anything like that. Maybe someone else has posative personal exp with it that might shed some light on it for you. I'm just weary of "gimmicks" Those ppm claims seem exaggerated to me, I would think that if it were as simple as a tab then it would be the talk throughout the entire canna nation and no need for tanks. Maybe it is and i've just been left "out or the loop"