Early evidence suggests CBG (cannabigerol) may help reduce anxiety, though research in humans is still limited. The first human clinical trial, conducted at Washington State University, found that CBG reduced both anxiety and stress in participants. In a separate survey of CBG users, 51% reported using it specifically for anxiety, and 78% said it worked better than conventional anxiety medications. These are promising signals, but CBG research is years behind what exists for CBD, so the picture is still coming into focus.
What the Research Actually Shows
CBG is a non-intoxicating cannabinoid found in small amounts in the cannabis plant. Unlike THC, it won’t get you high, and unlike CBD, it’s far less studied. Most of what we know about CBG and anxiety comes from animal studies and user surveys rather than large-scale clinical trials.
The Washington State University trial, published in 2024, was the first controlled study to test CBG’s effects on anxiety and stress in humans. While full dose-response details from the trial are still emerging, the results were positive enough that researchers described CBG as having clear anxiolytic (anxiety-reducing) properties. The survey data backing this up is notable: when hundreds of CBG users were asked about their experience, the majority said it outperformed their prescription anxiety medications. That’s self-reported data, not a head-to-head clinical comparison, but it reflects real-world experiences worth paying attention to.
CBG appears to work differently from both THC and CBD in the brain, interacting with cannabinoid receptors without producing intoxication. For people who avoid THC because it triggers anxiety or paranoia, CBG offers a potential alternative that supports calm without cognitive fog.
How Much to Take
No official dosage guidelines exist for CBG because, like all retail cannabinoid products, it isn’t regulated by the FDA. That said, physicians who work with cannabinoids generally recommend starting at 5 milligrams per day. The upper end of the typical range falls between 15 and 20 milligrams per day, or roughly 1 milligram per 10 pounds of body weight.
Starting low matters because individual responses to cannabinoids vary widely. Some people feel noticeable effects at 5 milligrams, while others need 15 before they notice a difference. Give each dose level at least several days before adjusting upward. If you’re using CBG specifically for anxiety, gradual titration helps you find the minimum effective dose without overshooting.
CBG and CBD Together
Many products combine CBG with CBD, and there’s a practical reason for this. A ratio of 1 part CBG to 2 or 3 parts CBD is commonly suggested for anxiety relief, with the added benefit of CBD’s own calming and anti-inflammatory properties. If you’re already using CBD and finding it partially helpful, adding CBG at a lower dose may enhance the effect rather than requiring you to switch entirely.
How Long It Takes to Work
How quickly CBG kicks in depends on how you take it. Animal pharmacokinetic studies show a stark difference between routes of administration. When CBG is absorbed through tissues (bypassing the digestive system), peak blood levels occur around 30 minutes. When taken orally and processed through the gut, peak levels don’t arrive until about 3 hours later, and the amount that actually reaches the bloodstream drops dramatically, to roughly 2% of what a direct-absorption route delivers.
For practical purposes, this means sublingual products (oils or tinctures held under the tongue for 60 to 90 seconds before swallowing) are likely to produce faster, more noticeable effects than capsules or edibles. If you take a CBG capsule and feel nothing after an hour, the compound may simply not have peaked yet. Patience matters, especially with oral forms.
Terpenes That May Boost the Effect
If you’re shopping for CBG products, you’ll notice some are formulated with specific terpenes, the aromatic compounds found naturally in cannabis and other plants. Certain terpenes appear to complement CBG’s calming effects:
- Linalool (also found in lavender) influences the same calming brain pathways that many anti-anxiety medications target. Combined with CBG, it may support relaxation while preserving mental clarity. Products typically pair 6 to 10 milligrams of CBG with 1 to 3 milligrams of linalool.
- Myrcene (found in hops and mangoes) has its own anxiety-reducing properties and pairs well with CBG for evening relaxation.
- Limonene (found in citrus peels) leans more toward mood elevation and sociability, making it a better fit for daytime use or social anxiety.
This “entourage effect,” where cannabinoids and terpenes work together more effectively than either does alone, is a working theory in cannabis science rather than a proven mechanism. Still, many users report that full-spectrum or terpene-enhanced products feel noticeably different from isolated CBG.
Side Effects and Drug Interactions
CBG’s safety profile isn’t well established yet. There simply haven’t been enough human studies to catalog side effects with confidence. Anecdotally, most users tolerate it well, but the absence of reported problems isn’t the same as proven safety.
The more concrete concern is drug interactions. CBG affects two enzyme systems in the liver that are responsible for breaking down a wide range of medications. If you take any prescription drug that’s processed through the liver (and most are), CBG could slow or speed up how your body metabolizes it. This can make medications stronger or weaker than intended. Blood thinners, certain antidepressants, anti-seizure medications, and some heart drugs are among the categories most likely to be affected. If you’re on any daily medication, checking with a pharmacist before adding CBG is a practical step worth taking.
What CBG Can and Can’t Do
CBG is not a replacement for evidence-based anxiety treatments like therapy or well-studied medications. The research base is too thin for that kind of confidence. What it does offer is a non-intoxicating option that a growing number of people find helpful, with early clinical data supporting what users have been reporting for years.
If you’re considering CBG for anxiety, look for products with third-party lab testing that confirms cannabinoid content and screens for contaminants. The unregulated market means quality varies enormously between brands. A certificate of analysis (COA) on the company’s website is the minimum standard worth expecting.