What Is in Vape E-Liquid? A Plain-English Guide to the Ingredients

Every e-liquid, including the 22ml pre-filled in the Alibarbar Ingot 9000, is built from the same four groups: a PG/VG base, nicotine (unless the product is nicotine-free), and flavourings. The base typically makes up the large majority of the liquid by volume.

Understanding what each group does helps you read labels sensibly and see through vague marketing. None of this replaces the package label, which remains the definitive statement of what is in your specific device.

Propylene glycol is a thin, colourless liquid used across food, medicines, and cosmetics as a solvent and carrier. In e-liquid, its job is to dissolve nicotine and flavourings evenly so each puff is consistent.

PG is also responsible for much of the 'throat hit' — the sensation at the back of the throat on inhaling. Liquids with a higher PG proportion tend to feel sharper and carry flavour more crisply, while producing less visible vapour.

Vegetable glycerin is a thicker, slightly sweet liquid derived from plant oils. When heated by the coil, it is the main source of the visible vapour cloud.

VG-heavy blends feel smoother on the throat but can mute flavour slightly compared with PG-heavy ones. The balance between PG and VG is one of the main ways manufacturers tune how a device feels to use — though sealed disposables like the Ingot 9000 arrive pre-mixed and cannot be adjusted.

Nicotine is the addictive component in tobacco-derived e-liquids. Its concentration varies widely between products and is expressed in milligrams per millilitre (mg/ml) or as a percentage on the label.

In Australia this is not a casual consumer choice: nicotine vaping products are supplied through the pharmacy channel, subject to pharmacist assessment, product eligibility, nicotine-strength controls, and state or territory law. The strength printed on your package label is the only figure you should rely on.

Flavourings give each product its character — fruit, dessert, menthol, tobacco-style, and so on. Reputable manufacturers use food-grade flavourings, which means those substances have been assessed as safe for use in food.

That assessment covers eating, not inhaling heated aerosol into the lungs. The distinction matters: a substance can be uncontroversial in cake and still be an open research question as an inhaled vapour. Treat 'food-grade' as a quality baseline, not a safety guarantee for vaping.

It would be irresponsible to present e-liquid as proven safe. The long-term health effects of inhaling vaporised PG, VG, nicotine, and flavourings over years are still being studied, and honest product information acknowledges that uncertainty.

What you can reasonably expect from a legitimate product is transparency: a readable label, stated nicotine strength, manufacturer identification, and supply through lawful channels. Anything making absolute safety claims — in either direction — deserves scepticism.