Guides

Nicotine strength: stepping down, and why people puff more

Lowering the strength of your e-liquid is one of the ways people cut down. It comes with a catch worth knowing about before you start: when the strength drops, people often puff more.

Last reviewed · 5 minute read · 3 sources

What the number on the bottle means

E-liquid strength is written in mg/ml: milligrams of nicotine in each millilitre of liquid. Refillable liquids in the UK are commonly sold at 18, 12, 6 and 3 mg/ml, and nicotine salts, used in many pods, at 20, 10 and 5. A disposable vape usually tells you its strength on the pack, but you can't change it.

Stepping down means moving to a lower number over time. The NHS lists it as one way to cut down: check your e-liquid's strength and reduce it gradually, paying attention to how you feel.1

Why people puff more when the strength drops

Your body is used to a certain amount of nicotine, and it tends to go looking for it. Researchers call this compensatory puffing.

In a study of 20 experienced vapers in England, each person spent a week on 18 mg/ml and a week on 6 mg/ml, vaping as they normally would. On the lower strength they took more puffs and got through more liquid, and their urge to vape was stronger. They still took in less nicotine overall.2

That's a small study over a week, with no plan to stop, so it shows that compensation happens, not how much or for how long. The NHS makes the same point from the other side: if you find yourself vaping more, you may have reduced too quickly, and it's fine to wait until you're ready.1

The useful takeaway: after a step down, watch how often you vape as well as the strength. More puffs on a lower strength is your body adjusting, not a sign you're doing it wrong.

Does stepping down help people stop?

Honestly, nobody knows yet. Cochrane's review of ways to stop vaping found 15 trials. Just one tested cutting down before stopping, with 17 people, and nothing in the review settles whether lowering the strength helps.3 It sounds sensible, and the NHS lists it, but it hasn't been properly tested. We'd rather tell you that than dress it up.

If you want to try it

  • One step at a time. Go to the next strength down rather than jumping several. Switching when you open your next bottle or pod keeps it simple.
  • Two dials, not one. How strong and how often are separate, and you can move either. If a day feels rough, it helps to know which one you've just turned.
  • It's optional. You can cut down how often you vape and leave the strength alone, or stop from whatever strength you're on.
  • No set speed. There's no tested schedule for how fast to step down, so we won't give you one. A pharmacist or stop smoking adviser can talk it through with you.

Where TaperØff fits

TaperØff's step-down plan works on how often you vape: today's puffs falling a few each day to zero, breaks from vaping that get longer, or pods that last a little longer. TaperØff Plus includes an optional strength step-down beside it. If you use a refillable or a pod with a known strength, it suggests a ladder you can edit, and you tell it when you've switched.

Because of compensatory puffing, the app shows an estimate of nicotine per day next to your puffs. A step down in strength then shows as a step down in nicotine, even in a week when your puff count creeps up.

Sources

Each one was opened and read, and is graded by the kind of study it is. Most research on stopping nicotine was done with people who smoked; where that matters, the guide says so.

  1. NHS England 2026 How to quit vaping. nhs.uk (Better Health) Health body guidance
  2. Dawkins et al. 2018 'Real-world' compensatory behaviour with low nicotine concentration e-liquid: subjective effects and nicotine, acrolein and formaldehyde exposure. Addiction 113(10):1874-1882 Observational study
  3. Butler et al. 2025 Interventions for quitting vaping. Cochrane Database of Systematic Reviews 2025(11):CD016058 Systematic review