Btw, I tried to find any restrictions/rules regarding the max. allowed nic. strength and max e-juice bottle size and tank sizes for US and looks like there is none at the moment, correct me if I'm wrong.
For UK, TPD restrict all e-juices to max 20mg/ml or 2% and no e-juices with nic can be sold in more than 10ml bottles and max 2ml tanks (which is crazy).
Another thing, is there any e-juice/salt of more than 60mg/ml or 6% available on US market?
An EU rule, not UK, although it obviously applies.
Correct me if I am wrong.