I make my own collonial silver and works awesome! Things ull need a power source of some sort. I personaly use a battery charger for a vechicle but u can use 9volt batters or what every, u will also need 2 peaces of pure silver I use 2 quarters. Then distilled water and any kind of eye drops. Hook ur power source to ur quarters submerge only the quarters in distilled water and for 300ml of distilled water I add 4drops of eye drops. The eye drops put electrolites in the water to make the current run more effently because dissilted water doesnt contain trace ellents its a poor conductor. Then I leave the whole thing set up for 4 days and then u have around 30ppm of silver, ur solution will turn yellow this is fine. You will get particles of rust at the bottom thats fine I shake it all up and ready to use. Its worked for me without any prblems. Way cheaper than buying collonial silver for 30bucks for 100ml