Deliver a dose of nicotine to the user by vaporizing liquid as the
smoker inhales. E-cigarettes basically consist of a rechargeable battery and logic board,
an atomizer or heating element and a mouthpiece that contains a sponge-type substance
that holds the liquid that is vaporized. Commercial liquid is sold in many flavors and
nicotine strengths, but some electronic cigarette users make their own by mixing the
ingredients at home. Many of the ingredients can be found at a local pharmacy. Only the
commercial nicotine liquid can be bought from a specialty retailer.

Firstly, 130 mL of vegetable glycerin is drawn into the syringe and deposit it in the
dropper bottle. Propylene glycerin can be used instead of vegetable glycerin in case it is
available. Vegetable glycerin-based liquids cause electric cigarettes to generate more
vapor than propylene glycerin-based liquids.

30 mL of water is measured into the oral syringe and it is then added to the dropper
bottle. Vegetable glycerin has a high viscosity and needs to be mixed with other liquids to
be used in an e-cigarette. The bottle is capped and shaking of the bottle is done in order to
mix the liquids. 40 mL of nicotine liquid is then added to the bottle.

The bottle is capped again and shaked vigorously to mix the liquids. The recommended
drops can now be applied to the cartridge.

In the above given mixture, the nicotine accounts for 29 percent of the overall contents
of the formula. Nicotine levels should not exceed 33 percent of any one mixture. It is
not necessary for the e-cigarette refill liquid to contain nicotine. For flavored vapor, the
nicotine liquid is replaced and is then mixed with the flavored liquid from an electronic
cigarette retailer.