CBN for Anxiety: What the Research Actually Shows (2026)

CBN for Anxiety: What the Research Actually Shows (2026)

There is no published clinical trial of CBN for anxiety. The only randomized trial that measured anxiety in people taking CBN — 1,020 adults in a 2024 sleep study given 25, 50 or 100 mg nightly — found no difference in anxiety compared with placebo, although 100 mg lowered stress scores. CBD has far more human data: a single 300 mg dose reduced public-speaking anxiety in two trials, while 100, 150, 600 and 900 mg did not.

That is the honest short version, and it is not what most "CBN for anxiety" pages tell you. Most of them borrow CBN's sleep reputation, add a line about "calming effects," and stop there. We read every human study we could find that gave people CBN and measured how they felt — plus the CBD, CBG and THC trials people actually compare it to — and linked each one so you can check our work.

Disclosure: Diesel Hemp sells hemp-derived CBD, THC and cannabinoid products, so we have a stake in this topic. Everything here is for adults 21+, is education rather than medical advice, and was checked against the original papers on November 9, 2026.

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CBN and Anxiety at a Glance

Sources linked in each row. "Not measured" means the trial did not include an anxiety scale, so it cannot tell you anything either way about anxiety.

Does CBN Help With Anxiety?

Not on current evidence. No trial has tested CBN in people with an anxiety disorder, and in the one large trial that tracked anxiety as a side measure, 25 to 100 mg of CBN nightly did not lower anxiety more than placebo. CBN may help some people sleep, and some users feel calmer as a result, but that is not the same as an anti-anxiety effect.

Here is how that trial worked. Researchers gave 1,020 adults who rated their sleep as poor one of five soft gels each night: 25 mg CBN (206 people), 50 mg (205), 100 mg (203), 4 mg melatonin (202) or placebo (204). Sleep was the main outcome. Stress, anxiety, pain and well-being were tracked as "exploratory" measures with standard PROMIS questionnaires.

Every active group slept better than placebo, and CBN did about as well as melatonin. But the paper is blunt about the rest: there were "no significant differences in anxiety, pain, well-being, or the frequency of side effects between any group and the placebo group." The one bright spot was stress — people on 100 mg had a larger drop in stress scores than people on placebo.

Two caveats keep that finding in proportion. The trial tested one brand's formulation (Floraworks' TruCBN™), and the people enrolled were poor sleepers, not people diagnosed with anxiety. Their average baseline anxiety score was about 11 on the 4-to-20 PROMIS scale — noticeable, but not severe. A different group, with more anxiety to begin with, could respond differently. Nobody has tested that yet.

A 2026 narrative review in PCN Reports reached the same place from the other direction. After searching the literature through March 2026, the authors wrote that evidence for CBN "remains minimal and insufficient to support any clinical recommendation" for psychiatric use, and that no completed randomized trials of CBN on psychiatric outcomes had been published.

Are There Any Clinical Trials on CBN for Anxiety?

No. As of November 2026 there is no published randomized trial with anxiety as its main outcome for CBN. Every human CBN trial so far was designed around sleep, and only one of them, the 1,020-person Kolobaric trial, included an anxiety scale.

That matters because a lot of pages quote "studies" on CBN and anxiety that turn out to be one of three things: animal research, reviews of animal research, or trials of CBD that get folded into a CBN article. Here is every human study we found that gave people CBN and recorded how they felt:

1. The 1975 Brazilian study: CBN alone felt like nothing

In the oldest human CBN study, five men took 50 mg of oral CBN, 25 mg of THC, or combinations a week apart. THC made them feel "drugged, drunk, dizzy, and drowsy." CBN on its own did not, and none of the treatments changed the questionnaire items on emotion, perception, cognition or sociability. When CBN was added to THC, though, the volunteers felt more drugged than on THC alone. Five people is tiny, but it is the clearest human data on what CBN alone feels like.

2. The 2024 sleep trial with 293 people: no anxiety scale

The Bonn-Miller trial gave 20 mg of CBN, with or without 10, 20 or 100 mg of CBD, for seven nights. CBN reduced nighttime awakenings and overall sleep disturbance. It did not change daytime fatigue, and adding CBD did not make it work better. Anxiety was not one of the endpoints, so this trial cannot tell you whether CBN calms you down.

3. The 2024 trial with 1,020 people: no anxiety benefit

Covered above. It is the only randomized CBN trial with an anxiety measure, and CBN did not beat placebo on it at any of three doses.

4. The 2026 sleep-lab trial: high dose, lots of side effects

In Sydney, 20 adults with diagnosed insomnia took a single dose of 30 mg or 300 mg CBN or placebo and slept in a lab. The 300 mg dose shortened the time to fall asleep and improved how people rated their sleep; 30 mg did nothing measurable. The researchers logged 247 mild-to-moderate adverse events across all three arms. Anxiety was not an outcome.

So when someone says "studies show CBN reduces anxiety," ask which study. In people, the answer so far is: none.

Why Do People Use CBN for Anxiety?

Mostly because they use it at night and associate it with calm. In a 2025 survey of 1,523 U.S. adults, 10.9% of CBN users who gave a medical reason named anxiety, behind insomnia (15.4%) and pain (11.1%).

That nationally representative survey, published in the Journal of Cannabis Research, found 4.5% of U.S. adults had ever used CBN, compared with 35.2% for CBD. Anxiety was the single most common medical reason given for CBD (14.7%), which tells you where most people already go for it.

There are a few reasons CBN gets pulled into the anxiety conversation anyway:

• It is sold as a sleep product. Racing thoughts at bedtime feel like anxiety, and anything that helps you sleep can make the next day feel calmer.
• Many CBN gummies also contain THC. Low-dose THC can feel relaxing (more on that below), and the CBN gets the credit.
• Animal studies get rounded up. Plenty of brand pages cite rodent and cell research as if it were human evidence.
• It comes from aged cannabis. CBN forms as THC oxidizes — the Lavender trial describes it as "an oxidative by-product of Δ9-tetrahydrocannabinol" — and old weed has a reputation as "sleepy weed."

None of that is a reason to dismiss CBN. It is a reason to be clear about what you are buying it for. If the goal is sleep, read our CBN for sleep guide. If the goal is daytime anxiety, the evidence points elsewhere.

How Does CBN Work in the Brain?

CBN is a weak partial agonist at the CB1 receptor — the same receptor THC acts on — with roughly 10% of THC's binding affinity, and a relatively stronger preference for CB2 receptors. CBD works differently: it barely binds CB1 and is thought to act through other targets such as the serotonin 5-HT1A receptor.

Those receptor details come from the 2026 PCN Reports review, which also notes that CBN's pharmacology "remains insufficiently characterized." The practical point is that CBN behaves more like a faint version of THC than like CBD. That has two consequences.

First, a 2026 mouse study found that CBN "fully substituted for THC" in animals trained to recognize THC, and that repeated doses produced tolerance and withdrawal signs when the CB1 receptor was blocked. Mouse doses do not translate neatly to people, but it means CBN is not simply "CBD for nighttime."

Second, THC itself has a two-sided relationship with anxiety. CB1 activation can calm or unsettle depending on dose. If CBN acts at the same receptor, even weakly, you would expect any anxiety effect to depend heavily on dose and on whatever THC is in the product with it. Our delta-9 THC and THCA vs THC entries go deeper on the receptor side.

Why is CBN so sedating?

CBN may be less sedating than its reputation. In the 1975 study, 50 mg of CBN alone caused no drowsy feeling; research points to THC in the product, high doses, or 11-hydroxy-CBN, a metabolite that acted at the CB1 receptor with potency close to THC's in lab tests.

The 1975 volunteers felt more drowsy only when CBN was combined with THC. The metabolite data come from rats and receptor assays (Arnold 2025), not people. In the 1,020-person trial, grogginess or drowsiness was the most-reported side effect, in 22 people across all groups (Kolobaric 2024), and only a single 300 mg dose clearly shortened the time to fall asleep (Lavender 2026). See CBN for sleep and our CBN dosage guide.

CBN vs CBD for Anxiety: Which Is Better?

CBD, on the evidence that exists. A 2024 review counted 11 randomized CBD trials in anxiety disorders from 2013 to 2023 alone, and single 300 mg doses reduced anxiety in public-speaking experiments. CBN has no anxiety trial, and its one anxiety measurement came back no different from placebo.

That does not mean CBD is proven. It means CBD has a body of human research to argue about, and CBN does not. Here is what the CBD research shows, good and bad.

The CBD studies that found an effect

• Social anxiety, 600 mg. In a 2011 trial of 24 people with untreated social anxiety disorder, a single 600 mg dose of CBD reduced anxiety, cognitive impairment and discomfort during a simulated public speech compared with placebo.
• Healthy volunteers, 300 mg. In 57 healthy men, 300 mg of CBD reduced speech anxiety. 150 mg and 600 mg did not.
• Real audience, 300 mg. In 60 people speaking in front of a real group, 300 mg of CBD and 1 mg of clonazepam both reduced anxiety after the speech; 100 mg and 900 mg of CBD did not. Clonazepam was more sedating than CBD.
• Psychiatric clinic, mixed doses. In a chart review of 72 adults, anxiety scores fell in the first month in 57 patients (79.2%). There was no placebo group, so treat this as a signal, not proof.

The CBD studies that did not

• Low-dose CBD oil matched placebo. In a 2025 trial, 180 stressed university students took an over-the-counter full-spectrum CBD oil, a placebo oil, or nothing for 30 days. Both oil groups improved more than the no-treatment group — and CBD was no better than placebo on any outcome, including anxiety.
• CBD plus therapy did not boost therapy. In 69 patients with panic disorder or social anxiety, 300 mg of CBD before exposure-therapy sessions did not improve fear re-extinction.
• Pooled results are mixed. A 2025 meta-analysis of 21 placebo-controlled trials found pure or CBD-enriched products together did not reach significance (SMD −0.40), but pure CBD alone showed a moderate, significant effect (SMD −0.61). A 2024 review of 11 randomized trials called the results "often contradictory."

The pattern worth noticing is the dose curve. CBD's anxiety effects in these experiments showed up around 300 mg and disappeared both below and above it — researchers call it an inverted U. Most consumer CBD products, including ours, contain 20 to 25 mg per serving. That is far below what the speech studies used, and the closest real-world test of a low daily dose (the 2025 student trial) found no edge over placebo.

For the full side-by-side on effects, sleep and safety, see our CBN vs CBD comparison.

CBD vs CBG vs CBN for Anxiety: How They Compare

Of the three, CBD has the most human anxiety research, CBG has one small positive trial (20 mg reduced anxiety and stress in 34 adults), and CBN has none that found a benefit. THC is the wild card: a low dose eased stress in one trial, and a slightly higher dose made mood worse.

Usage figures from the 2025 Satybaldiyeva survey of 1,523 U.S. adults. CBD trial count from a 2024 systematic review of randomized trials published 2013–2023.

CBG: the dark horse with one good trial

The CBG study is worth knowing about because it is a rare minor-cannabinoid trial with a positive anxiety result. In a 2024 double-blind crossover trial, 34 healthy adults took 20 mg of hemp-derived CBG tincture or placebo, then went through a stress test. CBG reduced overall anxiety and stress compared with placebo, improved verbal memory, and caused no subjective "drug" feeling or impairment.

One trial of 34 people, run over Zoom, is a starting point, not a verdict. But it is one more anxiety trial than CBN has. Read more in our CBG encyclopedia entry and the CBG tincture guide.

THC: why dose decides everything

In a 2017 trial in Drug and Alcohol Dependence, 42 adults took 0, 7.5 or 12.5 mg of oral THC before the Trier Social Stress Test, a standard mock job interview and mental-math task. At 7.5 mg, THC reduced how distressed people felt after the task. At 12.5 mg, it raised negative mood before and throughout the tasks and made the task feel more threatening. A 5 mg difference flipped the result.

This is the part most CBN articles leave out. A lot of CBN gummies are really THC gummies with CBN added, so how you feel may come down to the THC. The 2026 review also flagged that THC is "strongly and dose-dependently associated with adverse psychiatric outcomes" at higher doses and with heavy, early use. If you are anxiety-prone and curious about THC, our microdosing THC guide covers how to keep doses low.

Can CBN Cause Anxiety?

Anxiety was not a reported problem in the CBN trials: the 1,020-person trial found no difference in anxiety or in how often side effects occurred versus placebo. The bigger risk is the THC that many CBN products contain — in one trial, 12.5 mg of oral THC worsened mood while 7.5 mg eased stress.

There are four realistic ways a CBN product could leave you more anxious, not less:

1. Hidden or under-counted THC. A 2017 JAMA study of 84 CBD products from 31 companies found only 30.95% were accurately labeled, and THC turned up in 21.43% of them. CBN products are newer and less studied. Check the lab report for delta-9 THC per serving, not just CBN.
2. Stacking with THC. In the 1975 study, CBN alone felt like nothing, but CBN plus THC felt more "drugged" than THC alone. If a gummy combines them, start with a fraction.
3. High doses. The 2026 sleep-lab trial logged 247 mild-to-moderate adverse events across 20 people and three nights. Feeling off-balance or groggy can feel like anxiety to some people.
4. Next-day hangover or rebound. CBN's THC-like profile in animals, including tolerance and withdrawal signs in mice after repeated dosing, is a reason to avoid stacking doses night after night without breaks.

The 2026 review summed up CBN's psychiatric risk profile in one word: "Unknown (lacks human safety data)." That is not a red flag. It is an honest blank.

How Much CBN Should I Take for Anxiety?

There is no evidence-based CBN dose for anxiety, because no dose has been shown to reduce anxiety. Human trials gave 20 to 300 mg for sleep, and 25, 50 and 100 mg nightly did not lower anxiety versus placebo; 100 mg was the only dose that lowered stress.

If you still want to try CBN, here is how the studied doses line up:

A sensible approach, if your doctor is fine with it: take CBN at night, at the low end of the studied range, keep the dose the same for a week, and note how you feel the next day. Do not raise the dose because the first one "didn't work" — none of the anxiety data suggests more is better. Our CBN dosage guide covers gummies, tinctures and oils in detail.

How to Use CBN or CBD If You Want to Try It

Match the cannabinoid to the time of day, start with one measured serving, keep it the same for a week, and check the lab report for delta-9 THC before you buy. CBN belongs at night; CBD has the daytime research.

1. Decide what you are actually trying to fix. Bedtime worry and broken sleep point toward a nighttime product. Daytime nerves before a meeting or a flight point toward CBD, which is what the speech studies tested.
2. Read the label in milligrams. Look for mg of CBN, CBD and delta-9 THC per serving, not per bottle.
3. Open the certificate of analysis (COA). The batch number should match your product. Our guide on how to read a COA walks through each line, and our own lab results are on the Diesel Hemp test results page.
4. Start with one serving and wait. Swallowed gummies and soft gels take longer to kick in than smoked or vaped cannabis. Do not take a second dose because the first has not hit yet.
5. Keep it steady for a week. The trials used fixed doses for 7 to 30 days. Changing the dose every night makes it impossible to tell what is working.
6. Log it. A one-line note each day — dose, time, sleep, mood — tells you more than any review.
7. Skip alcohol and other sedatives on the same night, and do not drive after any product that contains THC.
8. Take breaks. Long-term data on CBN does not exist yet. A few days off every few weeks is a reasonable hedge.

Gummies, Soft Gels, Tinctures or Flower: Which Format?

Gummies and soft gels give the most consistent milligrams per serving; tinctures let you adjust by the drop; smokable CBD flower acts fastest but also delivers whatever THCA the flower contains once heated. For anxiety-prone users, a measured, swallowed CBD product is the most predictable place to start.

Flower deserves a note. Hemp CBD flower is bred for CBD, but every hemp plant carries some THCA, and heat converts it to THC. If you are sensitive to THC, start with a single small hit and wait. Our high-CBD, low-THC strains guide explains what to look for, and does THCA get you high? covers the conversion.

What about terpenes?

Brand pages often credit calming terpenes such as linalool, myrcene, caryophyllene and limonene for a product's effect. The human evidence for terpenes at the amounts found in a gummy or a joint is thin, so treat terpene claims the same way as CBN claims: interesting, unproven, and worth checking against the COA.

Side Effects, Drug Interactions and Who Should Avoid CBN

In the trials, CBN's side effects were mostly mild and, at 25 to 100 mg, no more frequent than placebo. The larger safety questions are drug interactions, long-term use (which nobody has studied) and THC in the product. CBD has a known liver signal at very high doses: 1,500 mg a day raised liver enzymes in 44% of healthy adults.

That liver finding comes from a 2021 phase I trial in which 16 healthy adults took 1,500 mg of CBD daily for about 3.5 weeks: 7 (44%) had liver enzymes above the normal range, and 5 (31%) went above five times the upper limit. The elevations began within 2 to 4 weeks. That dose is about 60 times a 25 mg soft gel, but it shows why "natural" does not mean "no effect on the body."

The FDA's own cannabis and CBD Q&A makes the broader point: products that have not gone through drug approval have not been evaluated for proper dosage, how they interact with other drugs, or side effects. That applies to every CBN and CBD product on the market, ours included.

Talk to a doctor or pharmacist before using CBN or CBD if you:

• take prescription medication, especially antidepressants, anti-anxiety medication, sleep aids, blood thinners or seizure medication;
• are pregnant, trying to conceive or breastfeeding;
• have liver disease;
• have a history of psychosis, bipolar disorder or panic attacks triggered by cannabis;
• are under 21.

In the 2024 exposure-therapy trial, people already on serotonergic antidepressants actually did worse on one fear-learning measure with CBD than with placebo. It is one finding, but it is a good reason not to add cannabinoids to an existing anxiety treatment on your own.

Will CBN Show Up on a Drug Test?

It can. A 2020 lab study found CBN cross-reacts with two common urine immunoassays designed to detect THC — needing about 5 times (EMIT II Plus) or 20 times (Microgenics) more CBN than THC metabolite to trigger a positive — and CBN added to THC's signal.

The study, in the Journal of Applied Laboratory Medicine, means a screening test could flag a heavy CBN user, and a confirmatory test would then look for THC metabolites specifically. Since many CBN products also contain THC, the safest answer for anyone who is drug tested is to skip CBN. More detail in does CBN show up on a drug test? and, for flower, does THCA show up on a drug test?

When to Talk to a Doctor About Anxiety

Cannabinoids are not a substitute for care. Talk to a doctor or a licensed mental-health professional if anxiety is affecting work, sleep, relationships or everyday tasks, if it has lasted more than a few weeks, or if you are using any substance — cannabis included — to get through the day. The National Institute of Mental Health has a plain-language overview of anxiety disorders and treatments that are well studied.

If you are in crisis or thinking about harming yourself, call or text 988 in the U.S. to reach the 988 Suicide & Crisis Lifeline.

Where Diesel Hemp Fits

After reading the research, we are not going to tell you CBN is an anxiety answer. What we do make is full-spectrum CBD from our own Abacus™ hemp lines, grown in Colorado by Diesel Hemp and partner farms and lab tested.

Be clear about what that is. Our soft gels carry 25 mg and our gummies 20 mg of CBDA + CBD per piece. The extract is not decarboxylated, so part of that is CBDA, the raw acid form of CBD, which has its own much smaller body of research. And 20 to 25 mg is well below the 300 mg doses that reduced anxiety in the speech experiments. We are not claiming our products treat anxiety. We are telling you what is in them so you can decide.

If you prefer flower, our CBD flower and CBD pre-rolls include Abacus Diesel, the cultivar the company is named after, and Cherry Abacus. Remember that smoking hemp flower converts its small THCA content to THC.

All sales are final, except a broken vape device is replaced. Shipping is free on orders over $75. 21+ only, and we do not ship to Colorado.

Frequently Asked Questions

Does CBN help with anxiety?

There is no good evidence that it does. No clinical trial has tested CBN for anxiety, and in the only randomized trial that measured anxiety, 1,020 adults taking 25, 50 or 100 mg of CBN nightly showed no difference in anxiety compared with placebo. The 100 mg dose did lower stress scores more than placebo. CBN may help some people sleep, which can make them feel calmer.

Is CBN or CBD better for anxiety?

CBD has much more human research. Single 300 mg doses of CBD reduced public-speaking anxiety in two trials, and 600 mg reduced it in people with social anxiety disorder, while CBN has no anxiety trial and showed no anxiety benefit at 25 to 100 mg. CBD results are still mixed: lower and higher doses often did not work, and a low daily CBD oil matched placebo.

How much CBN should I take for anxiety?

There is no evidence-based CBN dose for anxiety. Studies gave 20 to 300 mg for sleep, and 25, 50 and 100 mg nightly did not lower anxiety versus placebo, although 100 mg reduced stress. If you try CBN, use it at night at the low end of the studied range, keep the dose steady for a week, and ask a doctor first if you take medication.

Can CBN cause anxiety?

Anxiety was not a reported problem in the CBN trials, and at 25 to 100 mg side effects were no more frequent than placebo. The bigger risk is THC in CBN products: in one trial, 12.5 mg of oral THC worsened mood while 7.5 mg eased stress. A 2017 study also found THC in 21% of CBD products tested, so check the lab report.

Which is best for anxiety: CBD, CBG or CBN?

On current human evidence, CBD has the most research, CBG has one small positive trial in which 20 mg reduced anxiety and stress in 34 healthy adults, and CBN has no trial showing an anxiety benefit. None of the three is an approved anxiety treatment.

Does CBN make you relaxed?

Some people say it does, mostly at night, but the data is thin. In a 1975 study, 50 mg of CBN alone produced no drugged, drowsy or emotional changes, while CBN combined with THC made people feel more drugged than THC alone. In a 2024 trial, 100 mg of CBN nightly lowered stress scores more than placebo but did not change anxiety.

Does CBN get you high?

On its own, CBN does not reliably get you high at the doses tested in people. It is a weak partial activator of the CB1 receptor, with about 10% of THC's binding affinity, and in mice it fully substituted for THC. Many CBN products also contain THC, which can get you high.

Is it safe to take CBN every night?

Short-term use looked mostly mild in trials lasting one night to a few weeks, but long-term safety has not been studied. A 2026 review described CBN's psychiatric risk as unknown because it lacks human safety data, and a 2026 mouse study found tolerance and withdrawal signs after repeated doses. Taking breaks and talking to a doctor is a reasonable approach.

Can you take CBN and CBD together for anxiety?

You can, and many products combine them, but there is no anxiety evidence for the combination. In the one trial that tested CBN with CBD, adding 10 to 100 mg of CBD to 20 mg of CBN did not improve sleep compared with CBN alone, and anxiety was not measured.

Will CBN show up on a drug test?

It can. A 2020 study found CBN cross-reacts with two common urine screening tests for THC, needing about 5 to 20 times more CBN than THC metabolite to trigger a positive, and CBN added to THC's signal. Many CBN products also contain THC, so people who are drug tested should avoid them.

Does THC make anxiety better or worse?

It depends on the dose. In a 2017 trial of 42 adults, 7.5 mg of oral THC reduced distress after a stress test, while 12.5 mg increased negative mood and made the test feel more threatening. A 2026 review linked higher THC doses and heavy, early use to psychiatric harms such as psychosis and mood instability.

The Short Version

• CBN for anxiety is unproven. No anxiety trial exists, and the one trial with an anxiety measure (1,020 people, 25–100 mg) found no difference from placebo.
• CBD has the research. 300 mg single doses reduced speech anxiety in two trials; lower and higher doses did not, and a low daily dose matched placebo.
• CBG has one small positive trial at 20 mg.
• THC cuts both ways. 7.5 mg eased stress; 12.5 mg made mood worse. Check every CBN product for THC.
• If anxiety is affecting your life, see a professional. In a crisis, call or text 988.

Keep reading: CBN vs CBD · CBN dosage · CBN for sleep · CBN vs THC · CBN gummies · CBN vs melatonin · CBN (cannabinol) · Delta 9 drinks vs edibles · Microdosing THC coffee · Indica vs sativa