CBD Vape Juice: What It Is, How to Use It and How to Choose

Written by Sophie Clarke · Updated 2026-10-17 · ⏱ 10 min read

CBD vape juice is a vaping liquid made from a PG/VG base, CBD from hemp and, most of the time, terpenes or flavourings, designed to be heated in a vape device rather than dropped under your tongue. You’ll also see it sold as CBD liquid, CBD e-liquid or plain vape juice. This guide covers what’s in the bottle, how to read the label, which flavour profiles are worth your attention and how refillable liquid compares with ready-to-use formats.

Think of the bottle as a simple recipe with three ingredients:

• The PG/VG base: propylene glycol carries flavour and gives the throat hit, while vegetable glycerine adds body and thicker vapour.
• The CBD: the cannabinoid from hemp, the core of the mix.
• Terpenes or aromas: the seasoning, from citrusy limonene to earthy myrcene.

The CBD itself comes in three styles. A CBD isolate is CBD on its own, so the taste depends entirely on what the maker adds. Broad spectrum keeps other hemp compounds without THC, while full spectrum keeps the wider plant profile, which is why its label carries a THC mention.

What is CBD vape juice?

Some brands still print “CBD vape oil” on their juices, which sounds like the liquid CBD oil you drop under your tongue, even though the two are built for different delivery methods. Whatever convenience vaping CBD offers, it starts with the right liquid in the tank.

The bottle doesn’t always contain only what it says. A Virginia Commonwealth University lab tested nine commercially available CBD e-liquids and found CBD in every one, but four also held an unadvertised synthetic cannabinoid and one an unadvertised cough-syrup chemical^[4].

That’s why words like “pure”, “premium” or “legal” on a label carry less weight than a batch analysis listing the cannabinoids actually present. A nice label doesn’t make a liquid safe. Before you try a new brand, think of it like a recipe card versus the dish itself: you want proof of what went into the pan.

How do you use CBD vape liquid in your device?

Which vape kit works best with CBD liquid?

A refillable pod kit is the easiest match for vaping CBD liquid: it’s compact, fills in seconds and takes swap-in coils. A clearomiser gives you finer control over airflow and power. A disposable pen skips the upkeep but, unlike a refillable kit, locks you into one flavour.

Whatever you pick, prime it first, because it’s the simplest safety habit for your coil: fill the tank, give the wick time to soak, then keep the power low until the coil is safe to push a little harder. Gentle heat protects the terpenes and keeps every pull free of burnt notes.

Ready-to-vape juice is the simplest route: open, fill, done. A CBD booster mixed into a quality neutral base with your own flavourings adds a step, but if you’d rather build your own profile, a bit like seasoning a dish to taste, that’s the route for you. Just never pour CBD oil tinctures into a tank: they’re made to go under the tongue, not onto a hot coil.

How do you read the strength and quality on a CBD vape juice label?

CBD strength shows up in two forms: total milligrams per bottle, or a percentage. Total mg on its own can mislead: a bigger bottle may hold more CBD while being less concentrated, so a “high strength CBD” badge on the front means little until you do the maths.

To compare two strengths across different bottle sizes, divide the total mg by the volume in ml. That gives you mg per ml, and the percentage expresses the same concentration in another unit. Treat it as a product spec, like the ABV on a wine label, never as a serving guide.

A vape juice is only worth your money if what’s in the tank matches what’s printed on the box. Real quality shows up as checkable details, not adjectives. A trustworthy product shows:

• A batch number on the bottle, so the liquid can be traced back to its production run.
• A stated hemp origin, not a vague “natural source”.
• A short ingredient list: PG, VG, CBD, terpenes or flavourings, plus a clear THC mention.

The lab analysis of each batch is available on request from customer service.

What does CBD vape juice taste like?

Flavour is where you pick a side. Strain-inspired liquids play like cannabis classics: an OG Kush profile runs earthy and fuel-heavy, a Lemon Haze one bright and zesty. Four terpenes do most of the work:

• Myrcene: earthy, musky, a hint of ripe mango.
• Limonene: sharp citrus peel.
• Pinene: fresh pine needles.
• Caryophyllene: cracked black pepper.

Fruit and dessert flavours belong to another genre, closer to a pastry counter than a grow room. Want your CBD vape to taste like the plant? Go terpenes; for sweetness, go aromas.

Texture counts as much as taste. A PG-leaning blend gives a crisper throat hit, while one high in VG brings rounder, denser clouds. Buyers calling a product “smooth” or “harsh” are usually describing this balance rather than the CBD itself.

A liquid CBD vape is built for inhalation, so its flavour has to hold up under heat. Carrier oils like MCT oil give other CBD products their mild, nutty taste, but have no part in this one.

How should you store CBD vape liquid to keep it fresh?

Terpenes are the most fragile part of a CBD vape liquid. Like freshly ground coffee, the aroma fades long before anything else in the bottle changes, taking the liquid’s full flavour potential with it.

Three things speed that up:

• UV light: a clear bottle on a sunny windowsill ages fastest.
• Heat: a glovebox or a spot next to a radiator accelerates breakdown.
• Oxygen: every open cap lets air in, so screw it shut right after filling.

Like a good olive oil, CBD liquids keep best in a closed cupboard rather than on display, and the same rule applies to a bottle of CBD oil. When you take your vape kit out, carry the bottle upright and keep it out of direct sun.

If you only use vape juice now and then, don’t leave it sitting in the tank between sessions. Empty it or top up with fresh liquid before your next session. A fresh fill keeps the taste and effects you chose consistent from one session to the next.

CBD vape juice, ready-to-use CBD vapes or CBD oil: choosing your format

With your bottle stored properly, the last decision is format, and that mostly comes down to the gear you already own.

Our take: for a first try, go ready-to-use. It’s the most convenient way to start vaping CBD. The Magic Vape arrives filled, no tank to load, no wick to prime. Customer reviews are right there on the product page.

Already have a refillable kit? Bottled juice is the more enjoyable way to experience different terpene profiles, since you pick every liquid yourself. Compare formats in the CBD vape collection, and find spare parts in Accessories.

Not interested in vaping? Dropper CBD oils are in the CBD oil collection. Some shops label their liquid “vape CBD oil”, but vape juice CBD is the only format here that belongs in a tank.

Conclusion

Still unsure which format suits you? The table above sums it up at a glance. Think about your style of consumption, how absorption differs between inhalation and swallowing, and which price fits your budget.

Ready to pick? Browse the full CBD vape range, and if you’re new, try one format before stocking up on several. At Spliff, orders ship in 0.9 day on average between payment and dispatch, notably to these 4 countries: Austria, Belgium, Germany and the Netherlands.

For adults only (18+). CBD is not a medicine and is not a substitute for medical advice or treatment. If in doubt, consult a healthcare professional.

Frequently asked questions

Sources

4. Vape CBD? The e-liquid might contain some unexpected … — news.vcu.edu