I don't agree, vg, pg, and nicotine can all be altered, please don't act naïve. Nobody's talking about altering or tampering (that's a total different subject), I've seen many liquids that have no list of ingredients except the nic strength. Just because a seller says the imported liquid they sell has FDA approved ingredients doesn't mean a thing. Do you really think liquid coming out of China is all up to standards of FDA ingredients or USP, please get real. Don't tell me what's happening, perhaps you should address the parents of the teens who where hospitalized after using certain E liquids. But guess what?? You can still buy that bad E liquid.
who in there right mind would deliberately alter juice. food and pharmaceutical grade
is what it is. China stuff is just the same as ours and ours is mostly imported from China.
any distributor selling PG,VG,nic base or,flavors that are mislabeled is in violation
of laws already on the books.
that juice the teens got was not e-juice.they tried to smoke it using a vaping device.
similar to bath salts. it never was intended to be used as e-juice.(wink,wink,nod,nod)
other than listing ingredients there is no need for the FDA to protect us from something
that isn't happening.
i myself am not going to sit around imagining scenarios of harm and desolation that
are not happening now and could not be stopped by any FDA regulation if someone
so chose to break existing law.

regards
mike