No. Neither the regulations nor the guidelines to date prohibit any particular substances or materials, either in
e-liquids or
devices, nor are any specific substances or materials identified as permissible.
That's one of the most objectionable aspects of this whole thing. The FDA admits it doesn't know what's OK and what's not, so it has placed the entire burden on manufacturers to perform elaborate studies in order to spoon feed information to the FDA which it admits it has to have in order to become sufficiently educated on the products to enable it to properly regulate them.
vaping products are being treated much like new prescription drugs as opposed to recreational products. The FDA doesn't tell BP what to put in drugs. BP concocts a new drug, conducts all kinds of tests, submits the information, and then the FDA decides if its OK to market the drug. The cost of bringing a new drug to market averages $2.5
billion, which is roughly the cost of 27 F18 jet fighter planes.
Treating vaping products the same as new drugs is the wrong approach because there are already millions of people vaping. Many people have been vaping for 7 years or longer. That's vastly more people vaping for longer periods of time than new drug testing involves. So there's already plenty of readily available information on their safety. What would elaborate and costly clinical trials tell us that we don't already know or can't easily determine?