If you've ever opened a jar of Bubba Kush and been hit with that deep, earthy, almost tropical wave of aroma - that's myrcene doing its thing.
It's the most abundant terpene in cannabis and hemp. It shows up in some quantity in almost every strain. And it's the one most associated with that heavy, body-centred, settling quality that indica-leaning strains are known for. But myrcene gets reduced to a single idea - "couch lock" - in a way that undersells what's actually an interesting and well-researched compound.
I use myrcene-dominant strains regularly. Not recreationally, not casually - as a medical cannabis patient with sciatica and IBS, I've found strains high in myrcene to be genuinely useful for getting comfortable enough in the evening to sleep when the pain is difficult. That's personal experience, not a medical claim. But it's also not nothing - and as I've gone deeper into the research, I've found that what I've noticed lines up reasonably well with what the science is starting to show.
This is the deep dive.
What Is Myrcene?
Myrcene - technically beta-myrcene - is a monoterpene. That means it's one of the simpler terpene structures, built from a single isoprene unit. It's colourless in its isolated form, highly volatile at room temperature, and has a distinctive earthy, musky, slightly fruity aroma - sometimes described as tropical, sometimes reminiscent of hops or cloves depending on the strain it's found in.
It's not unique to cannabis. Myrcene is found in abundance in mangoes, hops, lemongrass, thyme and bay leaves. Hops - the plant used in beer brewing - contain such high concentrations of myrcene that the compound is partly responsible for the distinctive aroma of certain hoppy beers. Lemongrass has been used in Brazilian folk medicine for generations as a natural pain-reliever, and myrcene is a primary reason why.
In cannabis and hemp, myrcene is consistently the most abundant terpene across most strains - particularly in indica-leaning cultivars where it often dominates the terpene profile by a significant margin. The strains we stock at Originals CBD that tend to be highest in myrcene are the earthy, kushy, deeply settling ones - Bubba Kush, Royal OG, Lavender Cupcakes. If you've tried any of those and noticed a particular heaviness and body warmth, myrcene is a significant part of what you experienced.
The Couch Lock Myth - and What's Actually Going On
The idea that myrcene equals couch lock is one of those things that got repeated so many times in cannabis culture that it became accepted wisdom without much scrutiny. The reality is more nuanced.
Myrcene does have genuine sedative properties - that part is accurate. A 2021 review published in Pharmacological Reviews on the analgesic potential of cannabis terpenes confirmed that myrcene is well-known for its anxiolytic and sedative effects. Animal studies have shown that high-dose myrcene causes mice to fall asleep faster and stay asleep longer than control groups. These are real effects backed by real research.
But "sedative" isn't the same as "paralysing." The couch lock experience most people associate with heavy indica strains is a combination of multiple factors - myrcene being one of them, alongside THC levels, other terpenes like linalool, and individual biochemistry. In a Type 3 CBD strain with no psychoactive THC, myrcene's contribution is the settling, relaxing, body-centred quality rather than the disorientation or inability to function that high-THC strains can produce.
What myrcene appears to do - based on current research - is lower resistance across the blood-brain barrier, improving permeability and potentially allowing cannabinoids and other terpenes to cross more effectively. This is one mechanism behind the entourage effect that Russo described in his 2011 paper - myrcene isn't just producing its own effects, it may be enhancing the effects of the cannabinoids it's consumed alongside.
The Anti-Inflammatory Research
This is the part that personally interests me most - and where the research is becoming increasingly compelling.
A 2022 study by McDougall and McKenna published in the International Journal of Molecular Sciences examined myrcene's anti-inflammatory and analgesic properties specifically in the context of chronic joint inflammation. The study found that local application of myrcene reduced joint pain and inflammation via a cannabinoid receptor mechanism - meaning myrcene was interacting with the same endocannabinoid system receptors that CBD works through. The finding that it reduces nociception - the nervous system's processing of harmful stimuli, essentially the signal that registers as pain - is particularly significant.
Earlier research from 1990 by Rao and colleagues had already demonstrated myrcene's pain-relieving properties in animal models, showing that it inhibited pain perception in mice through both peripheral and central nervous system mechanisms. The analgesic effect was partially blocked by naloxone - an opioid receptor antagonist - suggesting that part of myrcene's pain-relieving action may involve opioid receptor pathways. That's a meaningful finding given the context of where plant-based approaches sit in the broader conversation about pain management.
There's also research on myrcene's gastroprotective properties - studies showing protective effects on gastric and duodenal mucosa in various models of gut damage. For someone managing IBS, that's an interesting area of research even if the human evidence is still early stage.
I want to be careful here - these are animal studies and early-stage research, not established clinical evidence for specific conditions. But the direction the science is pointing, combined with what I've noticed personally through regular use of myrcene-dominant strains, makes this a compound I take seriously. The research is developing in an interesting direction.
Where You Find Myrcene Beyond Cannabis
Understanding myrcene in context means understanding it as a compound that's been part of human experience for thousands of years in other forms.
Mangoes contain significant quantities of myrcene - which has given rise to the popular theory that eating a mango before consuming cannabis enhances the experience by pre-loading myrcene into your system. The science on this specific claim is thin, but the underlying logic - that dietary myrcene from fruit can contribute to total myrcene exposure - is reasonable.
Hops, used in brewing, are one of the richest botanical sources of myrcene outside cannabis. The characteristic aroma of certain IPAs - that dank, tropical, almost cannabis-like note - is largely myrcene. This is also why certain high-myrcene hemp strains have an almost beery quality to their aroma that some people find familiar even if they can't immediately place it.
Lemongrass, thyme and bay leaves all contain meaningful myrcene concentrations. Lemongrass in particular has a long history of use in folk medicine in South America precisely for its anti-inflammatory and pain-relieving properties - with myrcene now identified as a primary active compound behind those traditional applications.
Myrcene in the Brew
A brief note on this since it's relevant to the tea series running alongside these deep dives.
Myrcene is one of the better-surviving terpenes in a hemp flower brew compared to some of the more volatile compounds. It's reasonably water-soluble relative to certain other terpenes, which means a meaningful proportion of what's in the flower makes it into your cup rather than evaporating off as steam before it can be extracted.
The earthy, musky base note you get when you brew a kushy or indica-leaning strain - Bubba Kush, Royal OG - is substantially myrcene coming through in the liquid. It's one of the reasons I find these strains particularly effective for evening use when I'm managing sciatica discomfort - the myrcene is genuinely present in the cup rather than just in the aroma before you pour.
Water temperature still matters. At a full rolling boil myrcene will evaporate faster than it extracts. At 85 to 90 degrees Celsius you get a much better extraction. The difference in the character of the cup between a correctly brewed myrcene-heavy strain and one brewed too hot is noticeable once you know what you're tasting for.
The Strains to Try
If you want to experience myrcene in full effect from the Originals CBD range, these are the ones to reach for.
Bubba Kush 59 is the obvious starting point - deeply earthy, kushy and settling, with myrcene as the dominant terpene throughout. An evening strain if ever there was one.
Royal OG sits in similar territory - earthy, warm, body-centred. The kind of strain you brew on a difficult evening and feel the edges softening within twenty minutes.
Allium OG brings that same kush-influenced earthiness with its own distinctive character - another myrcene-forward strain that sits firmly in the evening camp rather than the daytime one.
Fyre OG is worth mentioning too - rich, resinous and rooted in classic OG genetics, with myrcene running through the profile in a way that complements the earthy depth you'd expect from anything in the OG family.
Lavender Cupcakes brings myrcene alongside linalool and caryophyllene - a more complex profile where the myrcene provides the base and the other terpenes add floral and spice notes on top. Brewed with oat milk it's genuinely one of my favourite evening cups.
And if you want to explore the full range of myrcene-dominant strains available, the terpene filter on our CBD flower collection lets you search specifically by myrcene - there are currently over 90 strains in the catalogue where myrcene features as a key terpene.
The Bottom Line
Myrcene is the most common terpene in CBD hemp for a reason. It's been part of the human relationship with this plant for as long as people have been using it - and the research is now starting to explain why certain experiences with certain strains feel the way they do.
It's not just couch lock. It's a well-researched compound with genuine anti-inflammatory, analgesic and sedative properties that interact with the endocannabinoid system in interesting ways. For anyone using CBD hemp flower with specific reasons in mind rather than purely recreationally, understanding myrcene is a useful piece of the puzzle.
As always - personal experience varies. What works for my sciatica and IBS on a difficult evening may not be your experience. But the research gives a plausible mechanism for why myrcene-dominant strains do what they seem to do, and that's worth knowing about.
Frequently Asked Questions
What is myrcene?
Myrcene - technically beta-myrcene - is a monoterpene and the most abundant terpene found in cannabis and hemp. It produces an earthy, musky, slightly fruity aroma and is also found in mangoes, hops, lemongrass and thyme. In CBD flower it's most dominant in indica-leaning strains like Bubba Kush and Royal OG and is largely responsible for the deep, settling, body-centred quality those strains are known for.
Does myrcene cause couch lock?
Myrcene has genuine sedative properties - research confirms it's anxiolytic and sedative in nature - but the couch lock experience most associated with heavy indica strains is a combination of multiple factors rather than myrcene alone. In Type 3 CBD strains with no psychoactive THC, myrcene's contribution is a settling, relaxing, body-centred quality rather than the disorientation associated with high-THC cannabis. It's one part of a more complex picture.
What CBD strains are highest in myrcene?
Indica-leaning and kush-derived strains tend to be highest in myrcene. From the Originals CBD range, Bubba Kush 59, Royal OG and Lavender Cupcakes are all myrcene-dominant strains with that characteristic earthy, warm, settling quality. If you're looking for a strain to wind down with in the evening, these are the ones to reach for.
What does the research say about myrcene?
There's a growing body of research on myrcene specifically. A 2022 study by McDougall and McKenna published in the International Journal of Molecular Sciences found that myrcene reduced joint pain and inflammation via a cannabinoid receptor mechanism in chronic arthritis models. A 2021 review in Pharmacological Reviews confirmed its well-known anxiolytic and sedative properties. Earlier research suggested myrcene may lower resistance across the blood-brain barrier, potentially enhancing the absorption of cannabinoids and other terpenes - one mechanism behind the entourage effect.
Does myrcene survive hemp flower tea brewing?
Better than many terpenes. Myrcene is reasonably water-soluble relative to some other terpenes, meaning a meaningful proportion makes it into your cup rather than evaporating off as steam. The earthy, musky base note in a brewed Bubba Kush or Royal OG cup is substantially myrcene coming through in the liquid. Brewing at 85 to 90 degrees Celsius rather than a full rolling boil gives the best extraction - at boiling temperature myrcene evaporates faster than it can be extracted.
Where else is myrcene found?
Mangoes are one of the richest dietary sources - which is behind the long-standing theory that eating a mango before consuming cannabis enhances the experience through additional myrcene. Hops used in brewing are another abundant source - the dank, tropical note in certain IPAs is largely myrcene. Lemongrass, thyme and bay leaves all contain meaningful concentrations too. Lemongrass in particular has a long history in South American folk medicine as a natural anti-inflammatory, with myrcene now identified as a primary active compound behind those traditional uses.
This article reflects the personal views and experiences of the author and is provided for general information only. It does not constitute medical advice. If you have a specific health condition, consult a qualified healthcare professional before making changes to your routine.