I have worked this out to cost around £3 for 30ml
What you need
E-LIQUID Nicotine base
VG LIQUID
PG LIQUID
E-LIQUID Flavour
Measuring syringe
Containers (I find the 30ml bottle from ready made juices I have had fine)
You will want to adjust the amount of VG or PG depending on your own taste.
E-liquids contain four ingredients: a PG or VG base, nicotine, water and flavorings. The base, or carrier, holds the nicotine and flavor in suspension so your e-cigarette can produce those nice clouds of smoke-like vapor. Both propylene glycol and vegetable glycerin are non-toxic organic compounds and generally considered safe for consumption. In fact, they are widely used as food additives in a variety of commercially available products.
First, let’s talk about PG-based e-liquid, because it’s the most popular of the two. Due to the fact that propylene glycol is relatively thin in consistency, this kind of e-liquid is runnier than the VG variety, and is more easily absorbed by the polyfill fabric inside the cartomizer. The low density of the juice also means that gunk doesn’t build up on the heating element of your e-cigarette as fast as it does when thicker vegetable glycerin liquid is used. Propylene glycol is a tasteless odorless substance, so it doesn’t alter the flavor of the e-liquid in any way. It’s also a powerful humectant, so while it will dry your mouth and throat if used consistently, PG also produces a stronger throat hit, similar to that of tobacco cigarettes. On the down side, propylene glycol is known to cause allergic reactions in some e-cig users. These can vary from minor reactions, like a tingling sensation in the throat, to serious irritations on various parts of the body. If you experience any unusual symptoms after vaping PG e-liquid, it’s best to stop using it immediately and switch to vegetable glycerin.
Vegetable glycerin is a considerably thicker solution, compared to propylene glycol. On its own, VG has a slight sweet taste which also makes the e-liquid sweeter and the flavors a little difficult to detect. While PG is know to give users a dry mouth, some vapers have complained about phlegm building up in their throat after suing vegetable glycerin-based juices. You also get less of a throat hit when using VG. On the upside, because of its high consistency, VG e-liquids produce significantly more vapor and doesn’t cause allergic reactions or irritations as often as propylene glycol.
Source
Mixing is fairly straight forward and I use this online calculator: E-Liquid Calculator
I have only used these for supplying the base and this site for the flavours but no doubt there are others maybe better who knows, this is not rocket science and takes around 2-3 minutes to make.
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