What Is CBN?
CBN stands for cannabinol. Unlike THC, CBD and CBG, it is not something the living plant sets out to make. It shows up later, as THC breaks down. Oxygen, warmth and light slowly turn THC into CBN, so the older the flower, the more CBN it carries.
A four-year storage study from Italy tracked exactly that. Weed and hash kept at room temperature lost almost all of their THC over the four years while their CBN climbed. Light and warmth sped the change up. Samples kept cold and dark barely moved.
CBN also has a place in the history books: it was the first cannabinoid scientists ever pulled out of the plant, from Indian hashish in the 1890s, decades before anyone identified THC. Today it is sold mostly as an isolate, a fine white powder. Our CBN isolate is one of those powders.
What Does CBN Do? Does It Get You High?
Not in the way THC does. CBN does reach the same receptor that THC uses to get you high, but it grips it roughly ten times more weakly, according to a 2022 review of CBN research.
The classic test is small and old. In a 1975 study, five men took 50 mg of CBN by mouth and reported no feeling of being drugged, drunk or drowsy. Taken together with THC, though, CBN made them feel a little more of all three than THC alone. A 2021 review of the human research came to the same place: on its own, CBN mostly does not produce a cannabis-type effect.
So what does CBN feel like? For most people, mild at most: a loose, relaxed heaviness in the body, especially in the evening, and some notice nothing at all. One of our buyers takes about 10 mg in a teaspoon of olive oil an hour before bed.
CBN vs CBD: What's the Difference?
Both are sold as white isolate powders, and neither gets you high the way THC does, so they are easy to mix up. Here is how they differ:
| CBN | CBD | |
|---|---|---|
| How it forms | From THC, as it ages | Made by the growing plant |
| Gets you high? | Very weakly at most | No |
| THC receptor | Binds it, weakly | Barely binds it |
| Human research | A few trials, all short | Far more, including large trials |
| When people take it | Evening, before bed | Any time of day |
Is CBN more effective than CBD?
No trial has tested CBN against CBD head to head. CBD has been studied far more and is the everyday, any-time cannabinoid, while CBN's reputation is the evening. Two 2024 trials mixed them: in one, adding CBD to CBN did not make CBN work any better, and in the other, adding CBN to CBD did no better than CBD alone.
Can you take CBN and CBD together?
Yes, and plenty of night-time oils and gummies combine them. In the 293-person trial, people took 20 mg of CBN with 10, 20 or 100 mg of CBD. If you want to try a blend, a pinch of CBD isolate stirs into the same oil.
CBN vs THC
THC is the cannabinoid that gets you high, and CBN is what it becomes with time. That is where the old line that stale weed makes you sleepy comes from: the THC fades and the CBN builds. On its own, CBN is a small fraction of THC's strength.
Pairing CBN with CBG
CBG sits at the start of the plant's chemistry and CBN at the end. People tend to reach for CBG during the day and save CBN for the night. We cover that pairing in our guide to what CBG is.
Does CBN Help You Sleep?
CBN's sleepy reputation came from cannabis lore long before anyone tested it. When a 2021 review went looking for proper sleep trials, it did not find a single one.
Three have been published since:
- 2024, about 1,000 adults who wanted better sleep. People took 25, 50 or 100 mg of CBN before bed for four weeks at home. All three groups rated their sleep better than the placebo group did, about as much as a group taking 4 mg of melatonin. Sleep was scored with online surveys, not in a lab, and the trial tested one company's CBN product.
- 2024, 293 poor sleepers. Adults who rated their sleep poor took 20 mg of CBN every night for a week. Compared with a placebo, they woke up fewer times and reported less overall sleep disturbance, with no extra tiredness the next day. CBN did not help them fall asleep faster, and the boost to overall sleep quality was not statistically clear.
- 2026, 20 people with insomnia. In a sleep lab, a single 30 mg dose did nothing measurable. A 300 mg dose, ten times higher, helped people fall asleep faster and rate their sleep better, but it did not cut the time they spent awake during the night.
So far the effect looks modest, and the research is still young. That has not stopped CBN becoming the go-to evening cannabinoid, usually in an oil or edible taken before bed.
How to Use CBN Isolate
CBN isolate is a raw ingredient, and it loves fat: it dissolves in oil and butter and will not mix into water. It also melts at around 77°C, so it does not need much heat.
A night-time CBN oil
Weigh 600 mg of powder and stir it into 30 ml of MCT or olive oil, warmed gently, until no specks remain. That works out to about 20 mg per millilitre, so one full dropper lands close to the nightly amount used in the 293-person trial. Store it in a dark bottle away from heat.
CBN edibles
Dissolve the powder in melted butter or oil first, then build your recipe on that, stirring well, so each piece carries an even share. Mark the batch, since a CBN brownie looks exactly like a plain one.
In a bowl, joint or dab
Some people add a small pinch to an evening bowl or roll it into a joint, and it vaporizes on a dab too. It has almost no taste, so the flower's flavour stays the same.
How Much CBN Should You Take?
No official dose exists yet. The trials used 20 to 100 mg a night for one to four weeks, and 30 mg or 300 mg for a single night. The usual advice is to start low, around 5 to 10 mg, and move up slowly over several nights. By mouth, take it about an hour before bed, since oils and edibles take a while to kick in.
Safety data is thin, because the trials were short. Side effects reported so far were mild to moderate, and in the largest trial they were no more common than on a placebo. CBN is broken down by the liver, like THC and CBD, so ask a pharmacist first if you take prescription medication, and avoid it during pregnancy or while breastfeeding. If you combine it with THC, do not drive.
Where to Buy CBN in Canada
Our CBN isolate starts at $54.99 for 3.5 g and goes up to bulk sizes for anyone making oils or edibles in batches. It sits on the isolates page next to CBD and CBG. Orders go out Canada-wide in Stealth Packaging.
Sources
- Kolobaric A, Saleska J, Hewlings SJ, et al. A randomized, double-blind, placebo-controlled trial to assess the effectiveness and safety of melatonin and three formulations of Floraworks proprietary TruCBN for improving sleep. Pharmaceuticals, 2024. Read the study
- Bonn-Miller MO, Feldner MT, Bynion TM, et al. A double-blind, randomized, placebo-controlled study of the safety and effects of CBN with and without CBD on sleep quality. Experimental and Clinical Psychopharmacology, 2024.
- Lavender IG, Marshall NS, McCartney D, et al. Cannabinol for acute treatment of insomnia disorder in a randomized placebo-controlled crossover trial. Journal of Sleep Research, 2026. Read the study
- Saleska JL, Bryant C, Kolobaric A, et al. The safety and comparative effectiveness of non-psychoactive cannabinoid formulations for the improvement of sleep: a double-blinded, randomized controlled trial. Journal of the American Nutrition Association, 2024.
- Corroon J. Cannabinol and sleep: separating fact from fiction. Cannabis and Cannabinoid Research, 2021.
- Karniol IG, Shirakawa I, Takahashi RN, Knobel E, Musty RE. Effects of delta9-tetrahydrocannabinol and cannabinol in man. Pharmacology, 1975.
- Zamengo L, Bettin C, Badocco D, et al. The role of time and storage conditions on the composition of hashish and marijuana samples: a four-year study. Forensic Science International, 2019.
- Kroner GM, Johnson-Davis KL, Doyle K, McMillin GA. Cannabinol (CBN) cross-reacts with two urine immunoassays designed to detect tetrahydrocannabinol (THC) metabolite. The Journal of Applied Laboratory Medicine, 2020.
- Maioli C, Mattoteia D, Amin HIM, Minassi A, Caprioglio D. Cannabinol: history, syntheses, and biological profile of the greatest "minor" cannabinoid. Plants, 2022.