How to Choose Your Nicotine Strength — Complete UK Guide
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Choosing the right nicotine strength is one of the most important decisions you'll make when you start vaping. Too low and you'll crave cigarettes; too high and vaping will feel harsh and unpleasant. This guide walks you through exactly how to choose the right strength based on your smoking history and the device you're using.
Why Nicotine Strength Matters
Unlike cigarettes, where nicotine delivery is fairly standardised, vaping devices deliver nicotine very differently depending on device type, coil resistance, power level, and e-liquid type. The same 6mg e-liquid can feel very weak in a low-power pod kit but very strong in a high-power sub-ohm device.
Your ideal strength depends on two things: how much you smoked and what device you're using.
Nicotine Strength Guide — Pod Kit or MTL Device
Pod kits and MTL devices are low-powered and deliver nicotine most efficiently. They're the closest experience to smoking a cigarette and the recommended choice for smokers switching to vaping.
| Smoking level | Recommended strength | E-liquid type |
|---|---|---|
| Heavy smoker (20+ cigs/day) | 20mg nic salt | 10ml nic salt |
| Moderate smoker (10–20/day) | 10mg–20mg nic salt | 10ml nic salt |
| Light smoker (under 10/day) | 10mg nic salt | 10ml nic salt |
| Social / occasional smoker | 5mg–10mg | 10ml nic salt |
| Nicotine reduction | 3mg–6mg | 10ml freebase TPD |
Nicotine Strength Guide — Sub-Ohm or DTL Device
Sub-ohm devices produce much more vapour, delivering nicotine more powerfully. You need a lower nicotine strength to achieve the same satisfaction.
| Smoking level | Recommended strength | E-liquid type |
|---|---|---|
| Heavy smoker | 6mg freebase | Shortfill + 1 nic shot |
| Moderate smoker | 3mg–6mg freebase | Shortfill + nic shot |
| Light / social smoker | 3mg freebase | Shortfill + nic shot |
| Non-smoker / flavour only | 0mg | Shortfill (no nic shot) |
How to Step Down Nicotine Over Time
- Week 1–4: Match your smoking level (20mg or 10mg nic salt on a pod kit)
- Month 2–3: Drop to the next strength down (20mg → 10mg, or 10mg → 6mg freebase)
- Month 4–6: Continue reducing (6mg → 3mg)
- Month 6+: Try 0mg — vape purely for the habit and flavour
UK Legal Limits on Nicotine Strength
Under the UK Tobacco and Related Products Regulations (TRPR), all nicotine-containing e-liquids sold in the UK must:
- Be sold in bottles no larger than 10ml
- Contain no more than 20mg/ml (2%) nicotine
- Be TPD-registered with the MHRA before sale
Frequently Asked Questions
What strength nic salt should I start with?
If you're switching from cigarettes and using a pod kit, start with 20mg. It's easier to drop down than to start too low and crave cigarettes.
Can I mix nicotine strengths?
Yes — if 10mg feels too weak and 20mg too strong, mix them 50/50 in your pod to get approximately 15mg.
Does higher nicotine mean more throat hit?
With freebase nicotine, yes. With nic salts, no — 20mg nic salts are smooth even at high strength.
I switched from smoking but still crave cigarettes — what should I do?
You may be under-nicotined. Try increasing your strength, vaping more frequently, or switching to a more efficient pod device. If you're already on 20mg and still craving, speak to your GP about free NHS Stop Smoking services.
Shop E-Liquids by Strength
- 10mg and 20mg Nic Salts — for pod kit and MTL users
- 100ml Shortfill E-Liquids — zero nicotine, add your own nic shot
- 50/50 Freebase E-Liquids — 3mg, 6mg, 12mg, 18mg options
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