What Is In Vape Juice and How Is It Made?

New to vaping, or just curious what that liquid is your friends keep refilling? This is a plain-language rundown of what vape juice actually is, what goes into it, and how it gets made. No jargon, no fluff.

What Is E-Juice?

Vape juice is the liquid that goes inside a vaporizer or e-cigarette. The device heats it until it turns to vapor, which is what you inhale and exhale. It is not combustion the way a lit cigarette burns tobacco; the coil simply warms the liquid past its boiling point until it vaporizes.

E-juice comes with or without nicotine, and it can be flavorless or flavored. That is all personal preference, and it is the first set of choices you will make as a vaper.

What Is in Vape Juice?

At its core, vape juice is a mix of four things: vegetable glycerin, propylene glycol, food-grade flavoring, and (optionally) nicotine. Most bottles are roughly 80 to 90 percent VG and PG combined, with flavoring and nicotine making up the rest.

Vegetable Glycerin (VG)

VG is the reason a vape puffs out a big, dense cloud instead of a thin wisp. It is a thick, colorless, odorless liquid with a faintly sweet taste, and it does most of the work of producing visible vapor. The more VG in a blend, the bigger and smoother the clouds.

VG also shows up in plenty of everyday food products. Because it is so thick, though, it does not always wick well on its own in a tank, which is where the next ingredient comes in.

Propylene Glycol (PG)

Mixing propylene glycol with VG thins out the liquid so it wicks and fires properly in an atomizer. PG also carries flavor better than VG, so it is what makes the flavor notes pop. As a food additive, PG is recognized by the FDA as GRAS (generally recognized as safe) for use in food; that is a statement about food use, not a claim about vapor products.

PG is a near-odorless liquid with a slight sweetness, milder than VG. If you are chasing big cloud-trick videos, lean toward a higher-VG juice; high-PG blends produce much smaller clouds but a sharper throat hit and bolder flavor.

Vape Flavorings

Flavor is a big part of why people vape. The PG/VG base has very little taste on its own, so flavoring is added. Not every food flavoring belongs in e-liquid, though. Some ingredients are fine to eat but are not formulated to be inhaled, so reputable manufacturers use flavorings selected and tested for that purpose.

The takeaway: buy juice from an established manufacturer. Do not grab baking flavorings off a grocery shelf and assume they translate to vaping.

Nicotine

Nicotine is the optional ingredient. You pick a strength in milligrams per milliliter (mg/mL), and you choose whether you want it at all. Plenty of vapers run 0 mg and vape purely for the flavor and the clouds.

Nicotine is an addictive chemical, and in concentrated form it should be handled with care. The strength you choose is largely a matter of the device you run and the experience you are after, which is covered in the FAQ below.

That gives you the full ingredient list you will find in e-juice: VG, PG, flavoring, and optional nicotine. Next, how those ingredients get combined into a finished bottle.

Making Your Own Juice

Before you start mixing, decide how strong you want the nicotine, or whether you want any. The math is straightforward: (strength in mg/mL) x (volume in mL) = total nicotine in mg. To skip the arithmetic, download our free e-juice recipe calculator.

Adding Nicotine

Wear gloves for this step. Concentrated nicotine is toxic and can be absorbed through skin, so treat it with respect. Using a blunt-tip syringe, draw up a little more than your target, watch the measurement marks, and slowly dispense the nicotine into a properly sized plastic dripper bottle.

Choose Your Flavors

With the nicotine in, add your flavoring. Any combination you like, as long as every flavor is one intended for vaping. A good starting point is around 10 percent of your total mix. You can always add more, but you cannot take it back out, so go light at first or you will waste the batch.

Add the Base

This is your VG and PG. A 50/50 split is a common, balanced starting point, but the ratio is yours to tune; more VG for clouds, more PG for throat hit and flavor. A mixing calculator helps you nail the exact amount of each to hit your target ratio and strength.

Prepare the Bottle

Cap it tight and shake hard. Give it several minutes so everything is evenly blended.

Patience: Let It Steep

Many juices taste better if you let them sit. Leaving the cap off for a few days after shaking gives the flavors time to blend and mellow. This step is optional, but it makes a real difference with some recipes.

Putting It All Together

Vaping has grown fast, driven by the variety of flavors and the experience of the vapor itself. The more you understand what is in your juice and how it goes together, the better your first bottles will turn out. That is the whole picture: four ingredients, a few choices, and a bit of patience.

Ready to skip the mixing and just enjoy it? Browse our full range of e-juice flavors.

Frequently Asked Questions

These products are intended only for adults 21+. Nicotine is an addictive chemical. This article is general product information and is not a smoking-cessation claim.