Just wondering is there any way to test e liquid to see if it's kosher as in usp grade n stuff not just nicotine strength or does it have to be done professionaly
Not that I know of the only way to be sure is to buy the flavoring/PG/VG/NIC from sources that sell USP grade and make it yourself. Or rely on the venders word that he mixes his ejuice with USP ingrediants.
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