All you need is: - monopropylene glycol (food grade) - vegetable glycerin (food grade) - nicotine base liquid The last one is difficult, but it is possible

All you need is: - 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.