Honest drug education, no judgment
I'd rather you have real information than a scare tactic or a blank space where information should be. Both of those get people hurt. The blank space is the one that got me hurt, and that's most of why this page exists. This is education and harm reduction, not encouragement. The goal is fewer bad nights and fewer bad outcomes for anyone who's going to make their own choices regardless of what I say here. It's not a substitute for medical advice, and it deliberately doesn't cover how or where to get anything. What's here is what to know if you do.
Harm-reduction information and Canadian emergency links reviewed 5 August 2026 against current Health Canada naloxone guidance and its toxic-drug-supply guidance.
💜 How I think about this
⚠️ Read this part regardless
A few things that matter more than any single substance below. Most of them are about what happens when you combine things, because combinations are where the risk stops being additive and starts being unpredictable. If you read nothing else I've put on this page, read this part.
🧪 By substance
Sourced from DanceSafe, TripSit, and medical safety references, not vibes. Where those sources disagreed with something I'd assumed, I went with the sources and not with me. Cannabis gets a full section of its own further down, since that's the one I've got firsthand reviews for and the only one I can speak to from experience instead of from reading.
🚬 Nicotine: vaping versus smoking
This one gets its own section instead of a card in the grid above. It's the most contested topic on this whole page. It's also the one where repeating a familiar number without checking it would be exactly the kind of thing I built this page to avoid. It isn't cannabis, it isn't the same evidence base, and it isn't the same audience, so it lives down here on purpose.
The number you've probably heard
"Vaping is 95% safer than smoking" traces back to a 2014 expert-panel exercise that was popularized by a 2015 Public Health England report. It's been repeated as if it were a direct measurement ever since, and it wasn't one: it was a small group of experts estimating a figure, and that methodology has been criticised for the thinness of the evidence behind it. That doesn't make the underlying idea wrong. Burning plant matter and inhaling the combustion products is worse than not doing that. But the number itself deserves to be attributed and qualified instead of stated as measured fact, so that's how I use it here.
"Safer than" isn't "safe." Both halves of that sentence matter. Both get dropped about equally often, in whichever direction suits the argument someone's making.
What's different: cigarette smoke is combustion, plant matter and additives burned at a high enough temperature to produce thousands of chemical byproducts, tar and carbon monoxide among them. Vape aerosol isn't smoke. It's a heated, not burned, mix of propylene glycol or vegetable glycerin, flavoring, and nicotine. That's a shorter list of things going into your lungs, and it's the basis for switching being the harm-reduction move it is. It's not the basis for calling either one harmless.
Switching completely vs. dual use
The evidence is specifically about people who switch entirely. Dual use, vaping and still smoking, is much less studied and what evidence exists is a lot less favorable, since it can mean getting the exposure from both instead of replacing one with the other. This is the part that gets skipped constantly because "I vape now too" feels like progress even when the smoking hasn't actually stopped.
What the Cochrane review actually found
Cochrane runs a living review on this, updated regularly instead of published once and left to go stale. That's what makes it the strongest single source going. The current version found high-certainty evidence that nicotine e-cigarettes help more people quit smoking than nicotine replacement therapy (patches, gum), and moderate-certainty evidence they beat non-nicotine e-cigarettes too. Side effects were mostly throat and mouth irritation, headache, and nausea, similar in rate to NRT and easing over time. Serious adverse events were rare across the board, though the review is honest that longer trials are still needed to fully nail down long-term safety.
EVALI wasn't a nicotine problem
The 2019 lung injury outbreak that made headlines was overwhelmingly traced to vitamin E acetate used as a cutting agent in illicit, unregulated THC cartridges, not to nicotine vaping. That distinction gets lost constantly in how the outbreak gets remembered. It's exactly the kind of mix-up I built this site to untangle. If you're vaping THC, the source and what it's been cut with matters enormously; that's a separate risk from nicotine vaping entirely.
Youth uptake is a real, separate concern
Adult smokers switching and teenagers taking up nicotine who never smoked are two different conversations. I'd rather name both than pick whichever one supports my angle. Canada's own Council of Chief Medical Officers of Health said in January 2025 they remain "significantly concerned by the continued high rates of nicotine vaping among Canadian youth," and pushed for tighter flavor, marketing and sales rules aimed specifically at that. Worth noticing: that statement is entirely about youth access and doesn't make PHE's "safer for switching adults" claim at all. That isn't a contradiction. It's two different public health problems getting two different messages, and a good example of why jurisdiction matters here.
Jurisdiction matters. I'm in Ontario. UK health bodies, Public Health England among them, have historically taken a markedly more permissive public stance on vaping as a cessation tool than most US public health messaging does. Health Canada's own position sits somewhere between the two, more cautious and more youth-focused than the UK's. A page that reads like the UK's framing is the global consensus would be wrong for readers in Canada specifically, so where these differ, I say so plainly instead of picking around it.
Nicotine itself, dependence, and quitting
Nicotine is the addictive part in both smoking and vaping, and it's dependence-forming on its own, separate from anything about combustion. Tapering off a vape usually means stepping down nicotine strength gradually instead of quitting outright, since dropping to zero abruptly is where most people relapse. If you're looking to quit either one, NRT (patches, gum, lozenges) and prescribed options like varenicline are available through a doctor in Ontario, and Health Canada's quit resources and provincial quitlines exist specifically for this and are free to use.
Pod and tank cleaning: it's coil replacement, not cleaning
Different problem than the cannabis gear further up this page. For nicotine pods and tanks, the online advice to rinse a coil under water and dry-burn it back to life is bad advice for a modern mesh coil. It just wrecks it faster. A dead or burnt-tasting coil gets replaced, not cleaned. What actually helps: keep the tank topped up so the coil never fires dry, wipe the outside and mouthpiece, and replace coils on the schedule your specific device needs instead of waiting for the burnt taste to force the issue.
Sources I checked while writing this, not pulled from memory: the Cochrane living review on e-cigarettes for smoking cessation, the Council of Chief Medical Officers of Health's January 2025 statement, the CDC and NEJM material on vitamin E acetate and EVALI, and the original Public Health England 95% figure alongside its criticism in The Lancet. Cochrane updates that living review periodically, so if you're reading this a while after 2026, it's worth checking whether the numbers above have moved.
🌿 Cannabis
Cannabis is the one substance here I can speak to firsthand instead of from reading. So the strain reviews, the product photography and the microscope shots have a page of their own again. They sat oddly at the bottom of this one. Everything above is sourced safety information written for somebody else, and that's a personal log of something I'm prescribed.
✉️ Questions?
Ask me directly
Got a question about something on this page, or something not on it? I'll answer honestly, without judgment, and I'm not going to lecture you. Use the form on my contact page: it reaches me directly, it doesn't need an account anywhere, and you don't have to put a real name on it.
💬 Ask me a question