This stuff is exactly what is in the finished flavours we vape, that does not particularly worry me.
However, with amounts like this, it is extremely simple to badly overdose a flavour, and believe me, that is not fun. I played around with a few of them, until exactly that happened to me. If my guess is correct I accidentally used 100 times as much as I wanted. Nothing serious happened - except that my taste buds were screaming and I haven't been able to vape this flavour again.
So, if you use them, make sure you don't use too much - even if that means diluting them twice or thrice.
However, with amounts like this, it is extremely simple to badly overdose a flavour, and believe me, that is not fun. I played around with a few of them, until exactly that happened to me. If my guess is correct I accidentally used 100 times as much as I wanted. Nothing serious happened - except that my taste buds were screaming and I haven't been able to vape this flavour again.
So, if you use them, make sure you don't use too much - even if that means diluting them twice or thrice.