Vape Juice Strength Guide: Which Nicotine Level Is Right for You?
Choosing the right nicotine strength is one of the most important decisions when starting to vape or switching devices. Too low and you may not feel satisfied; too high and the experience can be harsh. This guide explains the options clearly.
What Nicotine Strengths Are Available?
E-liquids are typically available in the following strengths in the UK:
- 0mg — No nicotine
- 3mg / 6mg — Low nicotine, suited to light smokers or those reducing intake
- 10mg / 12mg — Mid-range, suited to moderate smokers
- 18mg / 20mg — High nicotine, suited to heavier smokers or those using mouth-to-lung devices
In the UK, e-liquids are limited to a maximum of 20mg nicotine per ml under TPD regulations.
Freebase Nicotine vs Nicotine Salts — What’s the Difference?
| Freebase nicotine | Nicotine salts (nic salts) | |
|---|---|---|
| Throat hit | Stronger at higher strengths | Smoother at higher strengths |
| Absorption speed | Slower | Faster |
| Common strengths | 3mg – 18mg | 10mg – 20mg |
| Best for | Sub-ohm / DTL devices | Pod kits / MTL devices |
Which Nicotine Strength Should You Choose?
As a starting guide:
- Light smoker (under 10 cigarettes/day) — 6mg–10mg freebase or 10mg nic salts
- Moderate smoker (10–20 cigarettes/day) — 12mg–18mg freebase or 20mg nic salts
- Heavy smoker (20+ cigarettes/day) — 18mg–20mg nic salts
These are general starting points. You may need to adjust based on how satisfied you feel. Your nicotine strength also affects how many puffs per day you take — higher strengths typically mean fewer puffs needed to feel satisfied.
What Nicotine Strength Do Prefilled Pod Kits Use?
Most prefilled pod kits in the UK, including the Hayati Pro Ultra Plus 25K Vape Kit, use 20mg nicotine salts. This is the maximum permitted strength under UK TPD regulations and is well-suited to mouth-to-lung vaping. Not sure which kit type suits your nicotine needs? Read our Vape Kit Buying Guide UK 2026.
How Nicotine Strength Affects E-Liquid Consumption
Your nicotine strength directly impacts how quickly you go through e-liquid. For more on this, see our guides on how many puffs are in 10ml of e-liquid and how much e-liquid is in one vape puff.
Vape Juice Strength FAQs
Can I mix nicotine strengths?
Yes — you can mix e-liquids of different strengths to achieve an in-between level, though this works best with freebase liquids of the same VG/PG ratio.
What happens if I use too high a nicotine strength?
You may experience a harsh throat hit, headaches, or nausea. If this happens, switch to a lower strength.
Is 20mg nic salts the same as 20mg freebase?
No. 20mg nic salts delivers nicotine more smoothly and quickly than 20mg freebase, which would be very harsh for most users. Nic salts are specifically formulated for higher-strength use in pod kits.