What is in a typical electronic cigarette cartridge?

The primary cartridge ingredient is propylene glycol, and the secondary ingredients are water, nicotine and a flavor to replicate the taste of traditional smoking.

Propylene Glycol – The Food and Drug Administration (FDA) has determined propylene glycol to be “generally recognized as safe” for use in food and propylene glycol is used in cosmetics and medicines. It is used in food coloring, and flavoring, as an additive to keep food, medicines and cosmetics moist, and in machines that simulate smoke, although usage in simulating smoking devices is not currently included in the list of uses recognized by the FDA. 

Water – Water which is usually filtered.

Nicotine – is an alkaloid found in certain plants, predominately tobacco, and in lower quantities, tomatoes, potatoes, eggplants, cauliflower, bell-peppers and some teas.

Ethanol – is 200% proof alcohol (same as used in making alcoholic beverages, and is used to extract nicotine from the tobacco leaf.

Glycerol (glycerin) – Glycerol is a chemical compound also commonly called glycerin or glycerine. It is a colorless, odorless, viscous liquid that is widely used in pharmaceutical formulations. For human consumption, glycerol is classified by the FDA among the sugar alcohols as a caloric macronutrient.

Acetylpyrazine – Used in the creation and/or manufacturing of cocoa, coffee, roasted peanuts, tea, beer, breakfast cereals, ice cream, candy, and other food products and nicotine cartridges and has been deemed safe for use by people.

Guaiacol – is an ingredient use to give the smoky taste.

Myosmine – is found in nut products, as well as tobacco.

Cotinine – is metabolite of nicotine. Some studies have suggested that cotinine (as well as nicotine) improves memory and prevents neuron death.

Vanillin- is used in the food industry as a flavoring agent in foods, beverages and pharmaceuticals. 


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