Hi @rldiamond! I buy and resell my colloids wholesale from a company called iMedDo. A bottle of silver is 100ppm, and so one drop is very potent; all you need. I sell silver in half-oz bottles w 400 drops per bottle for $40.
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Well I am halfway accross the world . I reside in Lebanon, you think you will be able to ship me there?
Also, how can I verify the colloids I purchased is 100% clean and not mixed with anything dangerous?