Child vaping epidemic risks becoming ‘public health catastrophe’ in UK
theguardian.com
theguardian.com
- monopropylene glycol (food grade)
- vegetable glycerin (food grade)
- nicotine base liquid
The last one is difficult, but it is possible to grow your own tobacco and extract the alkaloids. That, however, will result in an impure mixture of various nicotine salts, other alkaloids, plant oils and whatnot, so you will probably want to stock up on unflavored nicotine liquid while you can.
As for flavorings, avoid them as a principle.
Vegetable Glycerine (VG) Propylene Glycol (PG)
These are usually mixed 50-50 and give you the juice / liquid base. You can buy those pre-mixed but AFAIK that is not good for long term storage.
You then add Nicotine (optional) and for flavor any regular food aromas.
Vape shops should be able to supply you with these things in bulk sizes. Make sure they are in proper containers for long term storage. I think I heard that Nicotine is not chemically stable but I might be wrong.
If you want to make your own, just use VG/PG and nicotine.
Gotta ask, is this really for harm reduction moving from cigarettes? Those were not flavored and we use them for the nicotine. So why should people add flavor to vape juice if it doesn't do anything besides increase risk of harm?