PG vs VG: What's the Difference?

If you've ever looked at a bottle of vape juice, you've probably seen numbers like 50/50, 70/30, or 60/40. These numbers refer to the ratio of PG (Propylene Glycol) and VG (Vegetable Glycerin) in the e-liquid.

But what do they actually mean?

Understanding the difference between PG and VG can help you choose an e-liquid that matches your device, your vaping style, and the experience you're looking for.

Let's break it down.

What Is PG?

Propylene Glycol (PG) is a clear, thin, nearly odorless liquid that has been used for decades in products like food, cosmetics, and pharmaceutical applications.

In vape juice, PG is primarily responsible for:

• Carrying flavor efficiently

• Producing a stronger throat hit

• Wicking quickly into coils

• Creating a cleaner, crisper flavor profile

Because it's thinner than VG, PG is commonly used in pod systems and lower-powered devices.

What Is VG?

Vegetable Glycerin (VG) is a thicker, naturally sweeter liquid derived from vegetable oils.

VG is responsible for:

• Producing dense vapor clouds

• Creating a smoother inhale

• Adding slight sweetness to flavors

• Producing a softer throat hit

Because it's much thicker, VG works best in devices designed to handle higher-viscosity e-liquids.

PG vs VG: Side-by-Side Comparison

Feature	PG	VG
Thickness	Thin	Thick
Flavor	Stronger and cleaner	Slightly muted
Throat Hit	Strong	Smooth
Vapor Production	Moderate	Dense clouds
Sweetness	Neutral	Slightly sweet
Best For	Pod systems	High-power devices

What Does 50/50 Mean?

When you see 50/50, it means the e-liquid contains:

• 50% PG

• 50% VG

This is one of the most balanced ratios available and is commonly used in pod systems.

It offers:

✔ Good flavor

✔ Moderate vapor production

✔ Smooth but noticeable throat hit

✔ Excellent coil wicking

What About 70/30?

A 70 VG / 30 PG blend contains more VG than PG.

This means:

• Bigger clouds

• Smoother inhale

• Slightly softer flavor

• Thicker e-liquid

These blends are generally intended for more powerful refillable devices that are designed to wick thicker liquids efficiently.

Using a high-VG liquid in a small pod system may lead to poor wicking and burnt hits, depending on the device.

Which Ratio Is Best?

There isn't one "best" PG/VG ratio—it depends on your device and personal preferences.

50/50 Is Great If You Want:

• Balanced flavor

• Smooth performance

• A moderate throat hit

• Compatibility with most pod systems

Higher VG Ratios Are Better If You Want:

• Larger vapor clouds

• A smoother inhale

• Less throat hit

• A refillable device designed for thicker liquids

Always follow your device manufacturer's recommendations for compatible e-liquid ratios.

Does PG or VG Affect Coil Life?

It can.

Higher-VG liquids are thicker and may wick more slowly in devices that aren't designed for them.

Heavily sweetened e-liquids—regardless of PG/VG ratio—can also leave more residue on coils over time, which may shorten coil life.

Choosing the right liquid for your device and replacing coils when needed can help maintain flavor and performance.

Common Misconceptions

"More VG Always Means Better."

Not necessarily.

While higher VG creates more vapor, it isn't always the best choice for every device or every user.

"Higher PG Is Stronger Nicotine."

No.

PG and VG affect how the vape feels, but nicotine strength is measured separately in mg/mL.

A 20 mg/mL nicotine strength remains 20 mg/mL whether it's in a 50/50 or 70/30 blend.

Final Thoughts

PG and VG are the two main ingredients that determine how an e-liquid performs.

• PG provides stronger flavor and a more noticeable throat hit.

• VG creates thicker vapor and a smoother inhale.

Neither is "better" than the other—it's all about choosing the right balance for your device and your preferences.

If you're unsure which e-liquid ratio is right for your vape, visit The F'n Vape Store. Our team can help you find a compatible option that delivers the flavor, performance, and vaping experience you're looking for.