A cannabis high from smoking or vaping typically lasts 1 to 4 hours, while edibles can keep you high for 6 to 8 hours or longer. The exact timeline depends on how you consumed it, how potent the product is, and your individual body chemistry. Here’s what to expect for each method.
Smoking and Vaping
Inhaled cannabis hits the fastest. You’ll feel the effects within seconds to a few minutes, and the high peaks around 30 minutes after your first puff. From there, the intensity gradually tapers off.
Smoking flower (the traditional dried plant) produces effects that commonly last 3 to 4 hours total. Vaping delivers a similar timeline, though the experience can feel slightly different depending on the product. Either way, most people feel functionally back to normal within 4 hours of a moderate session, though mild residual effects like fatigue or a foggy feeling can linger for several more hours.
Edibles and Capsules
Edibles follow a completely different timeline because your body processes THC through the liver before it reaches your brain. This extra step means the onset takes 30 to 90 minutes, and the high doesn’t peak until the 2 to 3 hour mark. Many people make the mistake of eating more because they don’t feel anything after 30 minutes, which leads to an uncomfortably intense experience once everything kicks in.
The liver converts THC into a metabolite that is 2 to 3 times more potent than the THC you inhale. This is why edibles produce a stronger, more body-heavy high that lasts 6 to 8 hours, sometimes longer. A particularly strong dose or a slow metabolism can stretch effects well beyond that window. If you’re waiting for an edible high to wear off, expect the most intense period to be roughly hours 2 through 4, with a slow decline after that.
Concentrates and Dabs
Dabs and other concentrates (wax, shatter, live resin) contain far more THC per hit than regular flower, often 60% to 90% compared to flower’s 15% to 30%. Counterintuitively, the high from dabs actually wears off faster. Effects typically last just 1 to 2 hours. The experience hits harder up front but fades more quickly, while flower provides a mellower, longer-lasting effect in the 3 to 4 hour range.
That said, if you take multiple dabs or use an especially potent extract, the duration can stretch. The 1 to 2 hour window applies to a single moderate hit.
Sublingual Tinctures and Oils
Tinctures held under the tongue fall between inhaling and eating in terms of timeline. The tissue under your tongue absorbs THC directly into the bloodstream, bypassing the liver. Effects start within 5 to 10 minutes, peak at 30 to 45 minutes, and wear off within 1 to 2 hours. This makes sublingual products one of the shortest-lasting methods available. If you swallow a tincture instead of holding it under your tongue, it behaves more like an edible, with a longer onset and extended duration.
Quick Comparison by Method
- Smoking/vaping flower: Onset in seconds to minutes, peaks at 30 minutes, lasts 3 to 4 hours
- Dabs/concentrates: Onset in seconds, intense peak, lasts 1 to 2 hours
- Sublingual tinctures: Onset in 5 to 10 minutes, peaks at 30 to 45 minutes, lasts 1 to 2 hours
- Edibles/capsules: Onset in 30 to 90 minutes, peaks at 2 to 3 hours, lasts 3 to 8 hours
Why It Lasts Longer for Some People
Two people can take the same dose and have noticeably different experiences. Several factors explain this. THC is fat-soluble, meaning it dissolves into and is stored in body fat rather than being quickly flushed out like water-soluble substances. People with more body fat tend to store more THC, which can subtly extend how long effects linger. Metabolism speed matters too: a faster metabolism processes and clears THC more quickly.
Tolerance is the other major variable. Regular users build tolerance rapidly, meaning each session feels shorter and less intense. Someone who uses cannabis daily might feel the effects of a smoked session for only an hour or two, while an occasional user could feel altered for the full 4 hours or more from the same amount. This is partly because regular users accumulate THC in their fat tissue over time. The half-life of THC in frequent users stretches to around 4 days, compared to a much shorter window for occasional users.
The “Next Day” Hangover Effect
Some people report feeling groggy, slow, or slightly off the morning after using cannabis, especially after edibles or heavy sessions. A large review from the University of Sydney examined 20 published studies looking at cognitive performance more than 8 hours after THC use. Out of 345 performance tests across those studies, only 12 (about 3.5%) showed any measurable next-day impairment, and the studies that found effects all had significant design limitations.
In practical terms, most people won’t experience meaningful cognitive impairment the next day. That said, the subjective feeling of being a bit foggy or tired is real for some users, even if it doesn’t show up on formal tests. Higher doses and edibles are more likely to produce this lingering feeling because the body takes longer to fully clear the THC and its metabolites.
How to Come Down Faster
There’s no reliable way to instantly end a high, but a few things can help you feel more grounded while you wait it out. Eating a meal can help, particularly with edibles, since food may speed up metabolism slightly. Staying hydrated, resting in a calm environment, and taking a shower are commonly reported to ease discomfort. Black peppercorns (chewed or sniffed) are a popular home remedy, though the evidence behind them is mostly anecdotal.
If the high is uncomfortably intense, especially from edibles, the most effective strategy is simply time and reassurance. Remind yourself that no one has fatally overdosed on cannabis and the feeling will pass. Lie down in a comfortable spot, put on something familiar, and ride it out. With smoked cannabis, you’ll likely feel significantly better within an hour. With edibles, it can take longer, but the worst of the intensity fades once you’re past the peak window.