Nicotine Salt Strength Guide: How to Choose the Right Mg for Your Vape

Choosing the right nicotine strength is something that trips up most new vapers. Between this and choosing your first vape, these are probably two of the biggest stumbling blocks.

You’ve already read my TL;DR above but you’re still reading which means you want to know more – you want detail. I get it, I’m a detail-oriented as well.

This guide basically covers everything you could possibly want to know about nicotine strengths.

It’s like 1800 words, so grab a coffee and stick around until the end because we’re going to covering: 



• Types of salt nicotine
• How strength affects flavor and throat hit
• Why you should never run nic salts in high power vapes
• And how our line of nicotine salts vape juices are changing the game in the UK

Let’s go!

If you’re brand new to all of this, grab the New Vaper’s Guide first — it’s 15+ years of experience in one free PDF and covers everything from picking your first device to filling a pod without making a mess.

What Is Nicotine Salt E-Liquid?

Nicotine salts are a specific formulation of nicotine made by combining freebase nicotine with an organic acid, most commonly benzoic acid.

The result is a smoother vape at higher strengths which is exactly why nic salts have taken over the pod kit market.

Standard freebase nicotine gets harsh above 12mg. Most people find it genuinely uncomfortable to vape at 18mg or higher.

Nic salts sidestep this entirely.

You can vape 20mg without the throat-shredding sensation you’d get from freebase at the same concentration.

The other benefit is absorption speed. Nic salts hit your bloodstream faster than freebase does, which means cravings get dealt with quicker.

For someone switching from cigarettes, that fast hit matters. A slow, unsatisfying vape is how people end up back on the smokes.

Nic salts are not the same as bar salts, even though the terms get used interchangeably.

Bar salts are a flavour category — high-intensity, disposable-inspired flavours built specifically for pod kits — but they’re made using the nic salt formula.

If you’re vaping bar salts, you’re vaping nic salts. More on the format differences later.

Fun Fact: Nicotine salt technology was patented and developed by JUUL Labs, who figured out that adding benzoic acid to nicotine made high-strength e-liquid genuinely smooth to inhale. The formula is now used across virtually every nic salt e-liquid sold in the UK market.

UK Nicotine Strength Levels: What’s Available and What’s Legal

The Tobacco Products Directive (TPD) caps nicotine e-liquid at 20mg/ml in the UK.

That’s the legal ceiling. no retailer can sell standard e-liquid above 2% nicotine.

If you’ve seen anything claiming to be 50mg or 35mg, it’s either a nicotine shot designed for mixing, not direct vaping, or it isn’t legally sold here.

In practice, UK nic salt bottles come in three strengths:

• 5mg — Low strength. For light or social smokers, or vapers stepping down from higher levels.
• 10mg — Mid strength. The most popular option in the UK market. Works for moderate smokers and anyone who’s already reduced from 20mg.
• 20mg — Maximum strength. The starting point for heavy smokers and former disposable vape users. This is the same strength most disposables were sold at before the UK ban in June 2025.

Some brands also offer 3mg in nic salt format, though it’s less common. That’s essentially a finishing-line strength for people who want the flavour with almost no nicotine hit.

How to Match Your Smoking Habit to the Right Strength

Here’s the honest starting guide. These are starting points — your body will tell you pretty quickly if you’ve pitched it wrong.

Daily Cigarettes	Recommended Starting Strength
1-5 (light/social)	5mg nic salt
5-10 (moderate)	10mg nic salt
10-20 (regular)	10mg or 20mg nic salt
20+ (heavy)	20mg nic salt
Ex-disposable user	20mg nic salt

The reason ex-disposable users land in the 20mg column regardless of how many cigarettes they used to smoke is that disposables trained the habit at 20mg. Your cravings are calibrated to that level. Starting at 10mg will likely feel unsatisfying and lead to over-vaping.

If you feel dizzy or nauseous after a few puffs, drop down a strength. If you’re vaping constantly and still craving more, move up. The sweet spot is feeling satisfied without overconsumption.

5mg vs 10mg vs 20mg: What Actually Changes?

The nicotine concentration is the only variable between these three strengths. The flavour formula and VG/PG ratio stay the same. But changing the mg level has a noticeable effect on the whole vaping experience.

5mg Nic Salt

The mildest option in the mainstream nic salt range. Throat hit is minimal. Flavour often comes through cleaner at this strength because the nicotine isn’t masking anything.

If you’re someone who just wants to stay off cigarettes and has already brought your dependence right down, 5mg is the target end-point for most step-down journeys.

Not the best starting point for anyone with a significant smoking history. You’ll under-dose and end up vaping constantly, which is both expensive and annoying.

10mg Nic Salt

This is the volume leader in the UK.

Sales data from our store shows 10mg outsells 20mg by roughly 3:1, which tells you a lot about where most vapers settle after their initial switch.

It delivers a noticeable but smooth nicotine hit, works well at standard pod kit wattages, and doesn’t hammer cravings with excess nicotine.

For moderate smokers making the switch directly, 10mg is often the right starting point.

For heavy smokers or ex-disposable users, it’s the natural second step after spending a few weeks at 20mg.

20mg Nic Salt

The entry point for heavy smokers and the replication point for disposable vaping. 20mg provides fast, effective craving management with the smooth delivery that nic salt formula enables.

The throat hit is present but controlled. You know you’ve vaped, but it doesn’t feel harsh.

The key thing to understand about 20mg is that it’s a tool, not a destination. Use it to get fully off cigarettes first.

Then, when you’re stable, start stepping down.

Going straight to a lower strength before cravings are properly managed is a common mistake that ends with people back on combustibles.

Fun Fact: UK sales data from 2025 shows the nicotine salt market is a major driver of the country’s estimated £3.3 billion vaping industry. The surge in bar salt formats — particularly 10ml, QuickMix, and longfill — has been directly linked to the disposable vape ban, with refillable pod kit sales rising sharply since June 2025.

Nic Salts vs Freebase: Why Strength Feels Different Depending on the Formula

You can buy 12mg freebase e-liquid and 12mg nic salt e-liquid and they’ll feel noticeably different to vape.

This confuses a lot of people who assume mg is mg.

The key difference is throat hit.

Freebase nicotine has a natural alkaline pH, which causes the chest-scraping sensation at higher strengths. Most vapers find freebase starts to feel harsh above 12mg.

The smoothing agent in nic salt formula (benzoic acid) lowers the pH, which removes that harshness.

Practical guide:

• Freebase works well at 3mg, 6mg, 9mg, and 12mg in sub-ohm or higher-powered devices
• Nic salts are designed for 5mg, 10mg, and 20mg in low-powered pod kits
• Using nic salts in a high-powered device will overcook the nicotine delivery and can make you feel rough fast
• Using freebase at 20mg is extremely harsh and not really done in normal vaping

If you’re on a pod kit — and most people reading this are — nic salts are almost certainly the right liquid type.

Freebase belongs in sub-ohm tanks and higher-wattage devices which are slowly going the way of the dodo, BlackBerry, and the dinosaurs.

For a deeper breakdown of the full range of e-liquid types, read my types of nicotine guide which covers all the main types you’ll find in the UK and the USA.

Nicotine Strength Across Formats: 10ml, QuickMix, and Longfill

Nicotine strength works the same way regardless of the format you buy. The mg/ml figure means the same thing whether you’re looking at a 10ml bar salt bottle or a 120ml longfill. What changes is the quantity, the cost per ml, and the mixing process involved.

10ml Bar Salts

The simplest format. A ready-to-vape bottle at 10mg or 20mg. Fill the pod, close it, vape.

Available in every flavour the bar salt range covers. Best for people who want to try new flavours without committing to a larger volume, or who only vape occasionally.

Cost per ml is higher than QuickMix or Longfills, but the convenience is unmatched.

QuickMix Bar Salts

A 20ml format using a dual-nozzle plug-and-go system. The flavour shot and nic salt base come in separate chambers.

Connect them, squeeze, shake and it’s ready in about 30 seconds. No measuring, no mess, no wasted liquid.

Available at 10mg and 20mg.

The finished product is a 50/50 VG/PG nic salt at your chosen strength, the same as you’d get from a 10ml bottle but at twice the volume and significantly better cost per ml.

The QuickMix bar salt range is the most popular format in our store for good reason.

Longfill Bar Salts

The best value-per-ml option. A concentrated flavour base in a 60ml or 120ml bottle, mixed with nicotine salt shots to reach your preferred strength.

A 120ml longfill at 10mg gives you the equivalent of 12 standard 10ml bottles.

The mixing takes about 30 seconds, and the flavour intensity is noticeably higher than standard nic salt bottles; it’s designed to replicate the big, punchy profiles disposable vapers are used to.

Longfills give you flexibility on strength too. Want 5mg instead of 10mg? Use fewer nic shots. The full vape juice range covers all formats and strengths.

How to Step Down Your Nicotine Strength Over Time

Getting off cigarettes is the first goal. Reducing nicotine dependence is the second, and vaping is one of the most effective tools for doing it because the format makes gradual reduction genuinely practical.

The standard approach:

1. Start at 20mg until cravings are fully managed and you’re no longer reaching for cigarettes
2. Drop to 10mg once you’re stable, usually after a few weeks to a few months depending on the person
3. Move to 5mg when 10mg feels like more than you need
4. Consider 3mg or 0mg if you want to continue vaping without significant nicotine intake

There’s no fixed timeline. Some people spend six months at 20mg before they feel ready to step down.

Others drop within a few weeks.

The important thing is not to rush the reduction phase at the expense of the quit. Staying smoke-free is the priority.

One practical tip: when you step down a strength, use the same flavour you’re already comfortable with. Changing two variables at once (strength and flavour) makes it harder to tell which one feels wrong if something feels off.

Which Pod Kit Works Best With Nic Salts?

Nic salts are built for mouth-to-lung (MTL) pod kits running between 8W and 15W with coils above 0.8 ohm.

Higher wattages and lower-resistance coils are for sub-ohm and direct-lung vaping — that’s freebase territory.

Running nic salts in a sub-ohm device doesn’t just waste liquid. At high power, you’re pulling a lot of nicotine into each puff, which can cause dizziness, headaches, and the kind of nicotine overconsumption that makes vaping feel unpleasant.

Stick to the right device category and the experience is reliably good.

For device recommendations matched to bar salts and nic salt e-liquids, browse our UK pod vapes selection for the best options right now.

The best vapes page also covers the current top picks across categories.

Wrapping Up: Pick Your Strength, Commit, Adjust

The right nic salt strength isn’t complicated when you know the starting rules:

• Heavy smoker or ex-disposable user, start at 20mg
• Moderate smoker, try 10mg
• Light or social smoker, 10mg or 5mg is best.
• Match your device (low-powered pod kit), use 50/50 e-liquid, and give it a few days before deciding to adjust.

The goal isn’t to find a permanent nicotine level. It’s to get fully off cigarettes first, then reduce over time at a pace that works for you.

And remember, if you need help just join our community and you can send me an email and I’ll answer any questions you have.

Vaping’s biggest advantage over other nicotine products is that gradual step-down is built into the format — use it.

If you’re just getting started and want a proper walkthrough, grab the New Vaper’s Guide — it’s free, covers everything in this guide and more, and it’s been tested against 15+ years of personal experience in the industry.