Have you tried both types? The one I am using has a relatively low percentage of silver particles. I am wondering that if I try something with a particle surface area of 12 cm2/ml versus the 0.3 that I am now taking, if the die off reaction would be huge. I was feeling relatively clearheaded since I have started taking the silver two days ago, with more energy. I just upped the dosage from 1/2 tsp 3 times daily 1 tsp 3 times daily and am feeling a little spacey. The doctor who told me to try it said that that would be a good indication of nanobacteria, or lyme. He said that if I were to be medically tested for those things, it would cost me about $1000 dollars to pinpoint the exact bug that I have.