OK--a serious response here.
First, I never tell my patients NOT to take a nutritional supplement along with their meds, as long as I have some idea of what's in it. Vitamins, minerals, omega-3 fatty acids--all good. However, if it has anything with stimulant properties--e.g ephedra, or even a lot of caffeine--they're not going to have mood stability, and in the case of the former, might even die.
Second, I looked at the EMPower website you linked. The "research" cited there consists of 2 open trials (i.e. not blinded placebo-controlled studies) with fewer than 20 patients each, 1 letter to the editor reporting a third, privately run open trial, 1 case report with 2 patients, and a "commentary".
Compare this to, say 50 years of clinical trials on lithium, and you'll understand why we're skeptical. (And please spare me the standard "Pharma-government conspiracy" line about further research being supressed, etc. First off, there's not a heckuva lot of money to be made off of lithium anymore, and second, if this stuff could really cure treatment-resistant psychiatric disease, they'd be all over it to make a buck off of it!)
Finally, I suspect that if this stuff (and this stuff alone) made you better, that you didn't have a true bipolar illness, but I'm not going to diagnose you over the internet. If one of my true bipolars were skipping their meds and substituing a nutritional supplement, I'd be danged worried that they were going to end up in the hospital (if they got there in time). And I would owe them nothing less than a demonstrated, time-tested, standard of care treatment. EMPower is not.
Have a nice day.