Ultimate Colloidal Silver 50ppm. Silver (Ag) 50ppm (50mg/Lt). Ross Gardiner. Made from 99.999% pure silver.
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I used this stuff this year & found that it "fried" the upper leaves a bit, but it definitely reversed the females to produce male pollen sacks. In hindsight, I'd cut it back to 30-40ppm if I was to use it in future.
'Still waiting for the females "dosed" with pollen from reversed females to show their wares. I've used a loupe to have a closer look & it seems as if I've had success ( some pistils are turning brown prematurely & bracts are looking swollen, but not in the large volumes I was expecting).