Few topics in quitting cause more confusion than vaping. Headlines swing between "miracle quit aid" and "public health crisis". The truth is more useful than either. For people who smoke, the evidence is now strong on two points: vaping is far less harmful than smoking, and nicotine vapes help more people stop smoking than nicotine replacement therapy.
If you smoke, switching completely to vaping is much less harmful than continuing to smoke. If you do not smoke, do not start vaping.
Why smoking is so harmful
Almost all of the harm from smoking comes from burning tobacco. Lighting a cigarette produces smoke containing thousands of chemicals, including tar, carbon monoxide and dozens of known carcinogens. Nicotine is what makes cigarettes addictive, but it is not what causes cancer, heart disease or lung disease.
A vape heats a liquid, usually containing nicotine, into an aerosol. There is no burning and no tobacco smoke, which is why exposure to harmful chemicals is dramatically lower.
Is vaping safer than smoking?
Yes, by a wide margin. A major evidence review for the UK government's Office for Health Improvement and Disparities in 2022 concluded that, in the short and medium term, vaping poses a small fraction of the risks of smoking. People who switch completely show large falls in exposure to the toxins linked to cancer, lung disease and heart disease.
That does not make vaping harmless. Vaping is newer than smoking, so long-term effects over decades are not yet known, and vapes still contain nicotine, which is addictive. The fair comparison is this: for someone who smokes, vaping is a much safer place to be, and being completely nicotine free is safer still.
Does vaping help you quit smoking?
The Cochrane review of e-cigarettes for smoking cessation, one of the most rigorous evidence summaries in medicine, has found high-certainty evidence that nicotine vapes help more people stop smoking than nicotine replacement therapy such as patches and gum. In the UK, vaping is now the most popular aid used by people trying to quit, and some local stop smoking services offer vape starter kits as part of their support.
Vaping works best when you treat it as a quit tool with a plan, not a permanent extra. We compare it with other options in NRT vs cold turkey.
The biggest mistake: dual use
Many people end up both smoking and vaping. This is called dual use, and it keeps most of the harm, because even a few cigarettes a day carry a large share of the risk to your heart and lungs. The benefit of vaping only arrives when you stop smoking completely.
- Set a quit date for cigarettes, exactly as you would with any other method.
- Use a vape with enough nicotine to control cravings. Too little, and you will reach for a cigarette.
- Get advice on device and strength from a stop smoking service or a specialist vape shop.
- Expect the first few weeks to involve cravings, and plan for your triggers. Our step-by-step quit guide covers this.
How to stop vaping once you have quit smoking
Once you are confident you will not go back to cigarettes, usually after a few months, you can start reducing. Lower the nicotine strength in steps, cut the times of day you vape, and use the same craving techniques that worked for cigarettes. A nicotine craving still rises and falls within minutes, as we explain in why cravings only last 3 minutes.
There is no rush. Staying off cigarettes is the priority, and coming off nicotine can wait until you feel ready.
Vaping and young people
Vapes are a tool for adults who smoke. They are not for children or for anyone who has never smoked, and youth vaping is a real concern. That is why the UK has banned single-use disposable vapes, restricted marketing and set the legal age for buying vapes at 18.
Frequently Asked Questions
Is vaping worse than smoking?
No. For people who smoke, the evidence consistently shows vaping is far less harmful than smoking because it does not involve burning tobacco. It is not risk free, so non-smokers should not start.
Can I use a vape and NRT together?
Yes, some people do, for example a nicotine patch for steady levels and a vape for cravings. Talk to a pharmacist or stop smoking adviser about what suits you.
Does vaping cause popcorn lung?
Popcorn lung is linked to a chemical called diacetyl. It is banned as an ingredient in nicotine vape liquids sold in the UK, and there are no confirmed cases of popcorn lung caused by vaping in the UK.
How long should I vape after quitting smoking?
Long enough to be sure you will not go back to cigarettes. For many people that is several months. Then reduce nicotine strength gradually.
This article is general information, not medical advice. Nicotine replacement and stop smoking services can significantly improve your chances of quitting. In the UK, free support is available through the NHS. Speak to your GP or pharmacist about what's right for you.
