Marijuana can be ingested in several distinct ways, each delivering its active compounds to your body through a different route. The most common methods are smoking, vaporizing, eating or drinking (edibles), absorbing through the mouth’s lining (sublingual), and applying to the skin (topical or transdermal). How you choose to consume it changes everything from how quickly you feel effects to how long they last and how intensely they hit.
Smoking
Smoking is the oldest and most widely recognized method. It involves burning dried cannabis flower in a joint, pipe, bong, or blunt. Combustion happens at temperatures above 900°C, which releases THC and other cannabinoids almost instantly into the lungs, where they pass directly into the bloodstream through thin lung tissue. Effects typically begin within seconds to minutes and peak around 15 to 30 minutes later.
The tradeoff is that combustion also produces tar, carbon monoxide, and other harmful byproducts, similar to what you’d find in tobacco smoke. This is the primary reason many people have shifted toward other methods.
Vaporizing
Vaporizers heat cannabis flower or concentrated oil to a temperature high enough to release cannabinoids as an inhalable aerosol but low enough to avoid combustion. Most devices operate between roughly 220°C and 420°C (about 430°F to 790°F). At these temperatures, the active compounds aerosolize without producing the same level of harmful byproducts that burning does, though heating above 400°C starts to approach combustion territory where toxins can form.
The experience is similar to smoking in terms of speed. You feel effects within minutes because the vapor still enters through the lungs and reaches the bloodstream almost immediately. Vaporizers come in two main forms: portable pen-style devices that use pre-filled oil cartridges, and larger tabletop units designed for dried flower. Temperature-controlled devices let you dial in specific heat settings, which affects both the flavor and the intensity of the vapor.
Edibles
Edibles include any food or drink infused with cannabis: gummies, chocolates, baked goods, beverages, capsules, and more. This is where the experience diverges sharply from inhalation. When you eat cannabis, THC travels through your digestive system to the liver before it ever reaches your brain. In the liver, enzymes convert THC into a different psychoactive compound called 11-hydroxy-THC, which crosses into the brain more readily and produces effects many people describe as stronger and more body-centered than inhaled cannabis.
The catch is timing. Edibles take anywhere from 30 minutes to 2 hours to produce noticeable effects, depending on your metabolism, what else you’ve eaten, and individual body chemistry. This delay is the single biggest source of problems with edibles. People eat a dose, feel nothing after an hour, eat more, and then find themselves uncomfortably high when it all kicks in at once. The CDC notes that many people who use edibles are caught off guard by their strength and long-lasting effects, which can persist for 6 to 8 hours or even longer.
A widely referenced standard dose for edibles is 5 mg of THC per serving, a figure proposed by researchers as a universal unit across all cannabis products. In regulated markets, edible packaging typically lists THC content per piece, making it easier to start low and wait before consuming more.
Sublingual and Buccal Absorption
Sublingual products are designed to be held under the tongue, while buccal products are placed against the inner cheek. Both deliver cannabinoids through the thin, highly vascular tissue inside your mouth and directly into the bloodstream. The tissue under the tongue is only about 100 to 200 micrometers thick, which allows for faster, more predictable absorption than swallowing.
The key advantage here is that this route bypasses the liver entirely during initial absorption. That means THC enters your blood as THC, not as 11-hydroxy-THC. The result is an onset faster than edibles (often within 15 to 30 minutes) and effects that feel closer to what you’d experience from inhalation, though not quite as immediate. Common sublingual products include tinctures (alcohol- or oil-based liquid drops), dissolvable strips, and lozenges. For these to work as intended, you need to hold them in your mouth rather than simply swallowing, since swallowing sends the cannabinoids through the digestive route instead.
Topical Application
Topical cannabis products like creams, balms, and lotions are applied directly to the skin. Cannabinoids are naturally resistant to skin penetration. They tend to build up in the outermost layer of skin (the stratum corneum) and generally do not reach the bloodstream in meaningful amounts. This makes topicals useful for localized relief, targeting sore muscles or inflamed joints, without producing any psychoactive effects.
Transdermal products are a different category, though they look similar. Transdermal patches and specially formulated creams use penetration-enhancing technology to push cannabinoids through the skin’s deeper layers and into the capillary beds beneath. Research in this area is still relatively new. One pharmacokinetic study in humans used an emulsion-based delivery system with penetrating agents and vasodilators (compounds that widen blood vessels) to successfully deliver both THC and CBD into systemic circulation through the skin. If they work as designed, transdermal products could provide steady, long-lasting cannabinoid levels without the peaks and valleys of other methods, and with reduced psychoactive intensity.
Rectal and Other Niche Routes
Cannabis suppositories exist as a less common option, primarily used by patients who cannot inhale or swallow. This route allows absorption through the rectal mucosa and partially bypasses liver metabolism, similar in concept to sublingual delivery. It remains a niche method with limited research, but it is available in some medical cannabis programs.
How the Method Changes the Experience
The route you choose doesn’t just affect convenience. It fundamentally changes the pharmacology of what happens in your body. Inhalation (smoking or vaping) delivers THC to the brain within seconds, peaks quickly, and wears off within 2 to 3 hours. Edibles take up to 2 hours to kick in, convert THC into a more potent metabolite in the liver, and can produce effects lasting 6 hours or more. Sublingual sits in between, offering moderate speed without the liver conversion. Topicals stay local. Transdermal patches aim for slow, sustained release.
This variation in timing is what makes choosing the right method so important. A 10 mg edible and a few puffs from a vaporizer may contain similar amounts of THC, but they will feel like very different experiences in your body because of how and where the compound gets processed. Understanding that distinction is the most practical thing you can take away when deciding how to consume cannabis.