I like the idea of turning on the thyroid instead of just jacking the body up with stimulants; which has never seemed to work for me.

It seems to me, outside of noticeable fat loss, you should be able to tell if its working by your body temperature.

I remember waaay back in the late 80's, I tried a synergistic product, called Cybergenics...which was probably crap, but my metabolism must have sped up while using the product because I was sleeping with the window cracked during a Minnesota winter. Another side effect though, was I was breaking out with lots of acne...which was unacceptable for a teenager....so I quit using the products.