You're stood at the till, or scrolling on your phone at half ten at night, staring at a wall of little bottles. 3mg. 6mg. 10mg. 20mg. Salt or freebase. You just want to stop smoking, or swap over from your last vape, and instead you're doing what feels like a chemistry exam.
Pick too low and you'll be back outside with the smokers within a week, wondering why the vape isn't doing anything for you. Pick too high and your first puff will hit like a slap, leaving you coughing and put off the whole idea.
Neither is a great start, and neither means vaping isn't for you. It usually just means the number on the bottle didn't match your habit.
This guide walks through exactly how to pick the right nicotine strength for beginners, using your actual smoking habit as the starting point rather than guesswork. We'll cover freebase and nic salts, which devices suit which strengths, and how to adjust once you've got a feel for it.
Quick-Reference Table: Your Starting Point
Match your situation below to get a sensible starting point, then read on for the full explanation.
| Your Situation | Likely Cause of Mismatch | What To Do |
|---|---|---|
| New vaper, never smoked much | No baseline to work from | Start low, 0-3mg, and only go up if cravings appear |
| Vape feels weak, still craving cigarettes | Strength too low for your habit | Step up one band on the strength scale |
| Vape feels harsh, makes you cough or dizzy | Strength too high, or wrong nicotine type | Step down, or switch from freebase to nic salt |
| Heavy smoker, 20+ a day | Needs a higher starting point | Try 18-20mg nic salt in a small pod kit |
| Switching from a disposable to refillable | Disposables use nic salt by default | Match your new pod's nic salt strength to your old disposable's mg |
Why Nicotine Strength Matters More Than People Think
Nicotine strength is arguably the single biggest factor in whether someone sticks with vaping or gives up and goes back to cigarettes. Get it right and cravings settle within days. Get it wrong in either direction and the whole experience feels off, even if the device itself is perfectly good.
Under UK law, enforced by the MHRA through the Tobacco Products Directive, no nicotine-containing e-liquid sold here can exceed 20mg per millilitre. That's the ceiling for everyone, from a light smoker trying their first pod to a 20-a-day smoker switching over. Picking where you sit under that ceiling is what this guide is really about.
📊 UK Stat Check
According to Action on Smoking and Health's July 2026 data, an estimated 3.3 million adults in Great Britain are ex-smokers who now vape instead — around 60% of all current adult vapers. Getting the nicotine strength right early on is one of the most common reasons people cited for successfully staying off cigarettes rather than drifting back.
How to Work Out Your Starting Strength
The simplest starting point is your smoking habit, if you have one. It's not a perfect science, since vaping and smoking deliver nicotine differently, but it gives you a sensible place to begin rather than picking at random.
| Smoking Habit | Freebase Starting Point | Nic Salt Starting Point |
|---|---|---|
| Non-smoker or occasional | 0mg | 0mg |
| Under 5 cigarettes a day | 3mg | 10mg |
| 5 to 10 a day | 6mg | 10mg |
| 10 to 15 a day | 10mg | 10mg |
| 15 to 20 a day | 12mg | 20mg |
| 20 or more a day | 18mg | 20mg |
A rough starting point for freebase and nic salt strengths, based on how much you currently smoke.
Freebase vs Nic Salt: Why the Numbers Don't Match
Here's the bit that trips people up most: a 10mg nic salt strength and a 10mg freebase e-liquid do not feel the same. They're both legal, both common, and both labelled in milligrams, but the nicotine itself is chemically different, which changes how quickly your body absorbs it and how harsh it feels going down.
- Freebase nicotine gives a sharper, more noticeable throat hit, and is absorbed more slowly
- Nic salt nicotine is smoother on the throat and absorbed faster, closer to how a cigarette feels
- Because salts are gentler at higher strengths, they're typically sold from 10mg up to the 20mg legal maximum
- Freebase is typically sold from 0mg up to 18mg, since higher strengths get harsh fast
If you're using a small pod kit, Elux 10ml nic salts in 10mg or 20mg are the standard starting point for most ex-smokers. If you're on a tank or a higher-wattage device, freebase strengths from a 500ml e-liquid range paired with the right nic shot will suit you better, since sub-ohm tanks push through far more e-liquid per puff.
Myth vs Reality: Nicotine Strength Edition
| Myth | Reality |
|---|---|
| Higher strength always means a better hit | Too high just makes the vapour harsh and hard to take a full puff on |
| Everyone should start at the legal maximum, 20mg | Only heavy smokers usually need to start that high |
| Nic salts and freebase at the same mg feel identical | They absorb differently and feel very different at the same number |
| Once you pick a strength, you're stuck with it | Stepping up or down as you adjust is completely normal |
✅ Reality Check
Nicotine strength is not one-size-fits-all, and it's not permanent. Match it to your habit and device type first, then adjust after a few days based on how you actually feel.
How to Choose Your Strength, Step by Step
- Count your average cigarettes per day — or your current mg if you're switching from another vape or a disposable.
- Use the quick-reference table above to find your starting band, freebase or nic salt.
- Choose freebase for tanks and higher-wattage devices, or nic salt for small, low-wattage pod kits.
- Vape as normal for 3 to 5 days, then adjust. Still reaching for cigarettes? Go up a band. Coughing or feeling lightheaded? Go down.
Pairing your chosen strength with the right device makes a bigger difference than people expect. A beginner-friendly Vaporesso pod kit suits nic salts well, while an Innokin starter kit built around a small MTL tank tends to suit freebase strengths in the 6-12mg range.
Device-Type Breakdown: Matching Strength to Kit
| Device Type | Typical Strength | Why |
|---|---|---|
| MTL starter kit | 3-18mg freebase | Small coil and low wattage suit the slower freebase hit |
| Refillable pod kit | 10-20mg nic salt | Small pods pair well with the smooth, fast nic salt absorption |
| Sub-ohm tank | 0-6mg freebase | High vapour volume per puff means low mg avoids harsh hits |
| Prefilled pod | 10-20mg nic salt | Pre-set to match typical smoker habits out of the box |
Is Starting Too High or Too Low Dangerous?
Starting too low isn't dangerous at all. Worst case, you don't feel satisfied and you step up a band, or you end up vaping more often to compensate, which isn't ideal but isn't harmful in itself.
Starting too high is more about discomfort than danger for most adults. Common symptoms include a harsh throat, a head rush, mild nausea or dizziness — particularly if you're new to nicotine altogether rather than switching from cigarettes. These symptoms are your body's way of telling you to dial it back, not a medical emergency, and they settle quickly once you drop to a lower strength.
⚠️ Safety Note
According to OHID's 2022 evidence review, which built on the original Public Health England assessment, vaping is estimated to be at least 95% less harmful than smoking in the short to medium term. That applies to vaping generally, not to any specific nicotine strength, so choosing a sensible mg for your habit is still worth getting right rather than defaulting to the highest number on the shelf.
How to Step Down Over Time
Once you're settled and no longer craving cigarettes, many vapers choose to gradually reduce their nicotine strength over several months. This isn't compulsory — plenty of people stay on a steady strength indefinitely — but if reducing your nicotine intake is a goal, doing it gradually tends to work better than a sudden drop.
- Wait until you've felt fully settled at your current strength before dropping down
- Drop one band at a time rather than jumping straight to the bottom
- Give yourself a few weeks at each new strength before deciding whether to go lower again
- If cravings creep back in, it's fine to hold at your current strength for longer
Final Verdict
There's no universal right answer to how much nicotine a beginner should use, but there is a sensible starting point based on how much you currently smoke or vape. Match your habit to the quick-reference table, pick freebase or nic salt based on your device, and give it a few days before deciding whether to adjust.
Most people who give up on vaping too early do so because the strength didn't match their habit — not because vaping itself didn't work for them. Get the mg right first, and everything else about the switch tends to fall into place.
At a Glance: Issue, Fix and Where to Shop
| Issue | Fix | Where to Shop |
|---|---|---|
| Vape feels too weak, still craving cigarettes | Step up one strength band | Elux 10ml nic salts |
| Vape feels harsh or makes you cough | Step down, or switch to nic salt | Elux 10ml nic salts |
| Unsure which device suits your strength | Match device type to the breakdown table | Vaporesso kits collection |
| Want an MTL, cigarette-like draw | Try a small tank with freebase e-liquid | Innokin kits collection |
| Mixing your own strength from a shortfill | Use a nic shot to top up a 0mg bottle | Nicotine shots |
FAQs – Frequently Asked Questions
Q. What nicotine strength should I start with if I smoke 10 a day?
For a 10-a-day habit, 6mg to 10mg freebase or 10mg nic salt is a sensible starting point. Everyone absorbs nicotine slightly differently, so treat this as a starting range rather than an exact figure, and adjust after a few days based on whether you're still craving cigarettes or finding the vape too harsh.
Q. Is 20mg too strong for a beginner?
Not necessarily, if you're a heavy smoker on 20 or more cigarettes a day. For that habit, 20mg nic salt in a small pod kit is a common and sensible starting point. For a lighter smoker or a non-smoker trying vaping for the first time, 20mg would likely feel far too harsh and is not the right place to begin.
Q. Can I mix nic salt and freebase e-liquids?
There's no safety issue with using both types across different devices, since they're both legal, TPD-compliant products. Most vapers naturally end up choosing one type per device based on what suits it best — nic salts for small pods and freebase for tanks — rather than mixing them within the same bottle or tank.
Q. What happens if my nicotine strength is too low?
You'll likely find yourself still craving cigarettes, vaping more frequently than you'd like, or feeling unsatisfied after a puff. None of this is dangerous, but it does make it more likely you'll drift back to smoking out of frustration. Stepping up one strength band usually resolves it within a day or two.
Q. How do I know when to step down my nicotine strength?
A good sign is feeling fully satisfied at your current strength with no cravings for cigarettes, over a period of several weeks. At that point, dropping one band and giving yourself a few weeks to adjust is a reasonable approach. There's no fixed timeline, and plenty of vapers choose to stay at a steady strength long term.
Q. Do nicotine-free 0mg vapes still help with quitting smoking?
Some people do use 0mg vapes, usually once they've already stepped down from higher strengths, to keep the hand-to-mouth habit going without any nicotine at all. As a first step for someone still smoking regularly, though, 0mg is unlikely to manage cravings effectively, since it removes the ingredient your body is used to.
Q. What strength nicotine salt should a heavy smoker start with?
If you're smoking 20 or more cigarettes a day, 20mg nic salt in a small pod kit is the sensible starting point. It delivers fast, smooth nicotine absorption that closely mimics the hit from a cigarette, which makes the transition much easier for heavy smokers.
Q. Can I use 20mg nic salt in a sub-ohm tank?
No. Sub-ohm tanks produce far more vapour per puff, which means you'd be absorbing a much higher dose of nicotine per inhale. High-strength nic salts are designed for low-wattage pod kits. Use 0-6mg freebase in sub-ohm tanks instead.
Why Choose Vape Online Store?
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- Fast UK delivery with same-day dispatch on orders placed before 3:30pm Monday to Friday
- Every product is fully TPD compliant and sourced from authorised UK distributors
- A wide range of freebase and nic salt strengths, from 0mg through to the 20mg legal maximum
If you're still working out your starting point, browsing the vape tanks collection alongside a freebase e-liquid is a solid way to test lower strengths, while our nic salt range covers the higher end for those switching from heavier smoking habits.
Browse our full range of nic salts and freebase e-liquids at Vape Online Store.
