Myrcene (beta-myrcene) is a monoterpene with the formula C10H16 and a boiling point near 167°C (332°F). It is the terpene that shows up in the largest amounts in many cannabis cultivars, and the same molecule gives hops, lemongrass, mango, thyme, and bay leaves part of their smell. The aroma reads earthy, musky, and herbal, with a light citrus edge.
myrcene effects indica or sativa
If you have ever opened a bag of weed and smelled something closer to a forest floor than a lemon peel, myrcene is a big part of why. It also drives the folk claims about sedation, mangoes, and couch lock.
myrcene rich strain examples
Myrcene at a Glance
- Chemical class: monoterpene (also written as beta-myrcene)
- Formula: C10H16
- Boiling point: about 167°C / 332°F
- Aroma: earthy, musky, herbal, clove, light citrus
- Also found in: hops, lemongrass, mango, thyme, basil, bay leaf, verbena, eucalyptus
- Common cannabis strains: Granddaddy Purple, Blue Dream, OG Kush, Northern Lights, Harlequin
What Does Myrcene Smell Like?
Myrcene smells earthy and musky first, then herbal, with a soft citrus note sitting in the background. In hops it comes across as dank and resiny. In lemongrass and verbena it leans brighter.
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That range explains why the same terpene can read as skunky in one flower and sweet in another. The other terpenes in the mix pull the scent in different directions.
Where Does Myrcene Come From?
Myrcene is one of the most widespread terpenes in the plant world. Hops, lemongrass, bay leaves, thyme, parsley, and mango all contain it. Some insects make it too, as a defense chemical.
In cannabis, myrcene forms in the trichomes, the tiny resin glands on the flower. It builds up during late flowering, which is why harvest timing changes the smell of the final product. Industry also manufactures myrcene in a lab as a starting material for flavors, fragrances, and certain vitamins.
What Are Myrcene's Effects?
Terpenes do not act on cannabinoid receptors the way THC does. Lab work suggests myrcene may affect pain signaling and inflammation, but most of that evidence comes from animal studies and cell cultures, not from controlled trials in people.
What you feel when you use cannabis comes from THC, CBD, and the rest of the terpene profile working together. Pulling one terpene's effect out of that mix is hard, and researchers have not settled the question.
Does Myrcene Cause Couch Lock?
The popular claim is that any strain above 0.5% myrcene will put you on the couch. That number traces back to a 1997 book on hashish, not to a clinical study, and no solid trial supports it.
Sedation from cannabis has more to do with THC level, dose, and the full blend of compounds than with myrcene alone. Myrcene-rich strains often happen to be high-THC, indica-leaning types, which muddies the picture.
What About the Mango Myth?
A common story says eating a mango before using cannabis boosts the high because mango contains myrcene. Mangoes do contain myrcene, but the amount is small, and the idea that food-borne terpenes cross the blood-brain barrier in meaningful amounts has little support.
Eat a mango if you like mangoes. Just do not expect a chemical shortcut.
Which Cannabis Strains Have High Myrcene?
Myrcene tends to dominate in strains that smell earthy, musky, or skunky rather than sharp and citrusy. Cultivar names shift with the grower and the batch, so the lab label on the package is a better guide than the name.
- Granddaddy Purple
- Blue Dream
- OG Kush
- Northern Lights
- Harlequin
- Special Kush
Two growers can sell the same named strain with different terpene numbers. Ask for the certificate of analysis if terpene content matters to you.
How Do You Keep Myrcene From Fading?
Terpenes are volatile. Heat, light, and oxygen all break them down, and myrcene is one of the first to go because it boils at a lower temperature than many cannabinoids.
- Store flower in an airtight glass jar.
- Keep it in a dark place at room temperature or cooler.
- Skip the fridge, where condensation and moisture swings hurt the flower.
- Grind right before you use it, not hours ahead.
- Use a vaporizer below 200°C (392°F) if you want the terpene flavor to survive the session.
Is Myrcene Safe?
Myrcene is approved in the US as a food flavoring additive and appears on the FDA list of substances added to food. That covers eating it, not inhaling concentrated forms or dabbing isolated terpenes.
One lab finding worth knowing: myrcene can increase how fast some compounds pass through skin. That matters for topical products, where it may change how much of another ingredient gets absorbed.
Concentrated terpene products sold for mixing into extracts can irritate lungs and skin. Treat them as chemicals, not as flavor drops.
Frequently Asked Questions
Is myrcene the most common terpene in cannabis?
In many cultivars, yes. Myrcene ranks first or second in a large share of tested flower. It is not universal, though. Some strains lean on pinene, caryophyllene, or limonene instead.
Is myrcene indica or sativa?
Neither. Terpenes are not tied to the indica or sativa label, which reflects plant shape more than chemistry. Myrcene shows up in both.
What does beta-myrcene mean?
Beta-myrcene is the full chemical name for the myrcene found in plants. Alpha-myrcene is a related but far less common form. When a label says myrcene, it means beta-myrcene.
Does myrcene get you high?
No. Myrcene does not act on CB1 receptors the way THC does. Any high you feel comes from cannabinoids, with terpenes that may shape the experience.
The Short Version
Myrcene is a monoterpene with an earthy, musky smell. It is common in cannabis, hops, lemongrass, and mango. Claims about sedation and mango synergy are popular but thin on evidence.
Want to see real terpene numbers on the flower you buy? Ask the budtender for the batch certificate of analysis. Numbers beat names.