Why people still buy "Vape Juice" from vendors amazes me.
There are only three or four if you include nicotine ingredients to a juice, Propylene glycol, vegetable glycerine, food flavouring (usually and nicotine if required)
Big tobacco can go suck my appendage if they think I can be manipulated into buying back into their wares again.
I'm actually surprised that Fasttech hasn't (As yet) started selling "Food flavourings" for those of us who make our own juice.
All of the above ingredients are easy to buy, and mixing amounts/volumes are all over the internet for those who want to mix their own.