Terpene Atlas · Monoterpene

/LIM-uh-neen/ · D-Limonene · (R)-(+)-limonene

Limonene

The bright citrus-peel monoterpene · a clean cyclic ring whose famous “energizing” reputation is popular lore the controlled human evidence has not confirmed.

Orange peelLemonLime zestSweetLight turpentine

Formula

C₁₀H₁₆

Weight

136.23 g/mol

Class

C10 · monocyclic (one ring)

Form

Clear and colorless

Meet the molecule

One open chain, not a cage

Molecular class

Monoterpene · C10 · monocyclic (one ring)

Formula · weight

C₁₀H₁₆ · 136.23 g/mol

Biosynthetic origin

A cyclic C10 monoterpene built from geranyl diphosphate (GPP) by a limonene-type terpene synthase.

Structural trait

A single six-membered ring carrying an exocyclic isopropenyl group · a closed loop, the structural opposite of Myrcene's open chain.

Aroma depends partly on stereochemistry: D-limonene reads strongly orange, while other forms can read more lemony, piney, or turpentine-like.

Aroma spectrum

A qualitative sensory map

Relative prominence is illustrative, not a measured profile. Aroma is never produced by one molecule alone.

Orange peel

Lemon

Lime zest

Sweet

Light turpentine

citrus fruity pine

Physical identity

The isolated compound

Appearance

Clear and colorless.

Texture

Thin, oily liquid.

Volatility

A light, volatile monoterpene · it evaporates readily and contributes bright, early citrus top notes.

This describes the isolated chemical. It does not predict whether flower will be dense, sticky, purple, or frosty.

Extreme close-up of the Limonene resin, its glassy interior in detail

The resin, up close

Where it appears in nature

Beyond cannabis

Botanical sources of Limonene: Citrus peels, Juniper, Rosemary, Mint, Caraway, Conifer resins

Citrus peels The classic commercial source. Juniper Rosemary Mint Caraway Conifer resins

degrees Celsius

176

The boiling point of the isolated compound. A light C10 monoterpene that evaporates readily · part of why citrus reads as an early, lifting top note. PubChem

Evidence ladder

What's known · and how well

Research is ranked by strength, not promised as effects. Isolated-compound findings are separated from whole-cannabis evidence throughout.

Established mechanism1 claim

Limonene is a cyclic C10 monoterpene; its aroma depends partly on stereochemistry, which is well-established chemistry.

established isolated terpene reference PubChem PMC

Brain research2 claims

Preclinical work suggests anxiety-modulating and antidepressant-like activity for isolated limonene.

animal isolated terpene reference

Preclinical, isolated-compound findings; not demonstrated for a cannabis product in controlled human trials.

Claims of reliable stimulation or euphoria in cannabis users remain unproven.

unproven whole cannabis reference

Body research1 claim

Isolated limonene has been studied for anti-inflammatory, antioxidant, antimicrobial, gastric-protective, and metabolic activity.

animal isolated terpene reference

Preclinical laboratory and animal work; not shown for a cannabis product in humans.

Recognized non-cannabis use1 claim

Widely used as a citrus flavor and fragrance ingredient and as a “green” solvent in cleaners, degreasers, and adhesives.

approved use non-cannabis product reference

Unproven / insufficient1 claim

No approved cannabis-related medical use exists. Limonene formulations have been studied experimentally for reflux, gallstones, inflammation, and drug delivery.

unproven isolated terpene reference

Myth vs evidence

The “limonene is energizing” myth

The claim

Because citrus smells bright, popular lore treats limonene as a guaranteed mood-lift or energizer in cannabis. It is one of the most repeated terpene claims.

The evidence

Reliable stimulation or euphoria from limonene in cannabis users has not been proven in controlled human trials. THC and other cannabinoids drive intoxication; a terpene panel does not predict how a product will feel.

unprovenwhole cannabisreference

Where it sits

Limonene against the field

Objective chemistry and how often it shows up · not effects. Every authored terpene is plotted on each track; Limonene is lit, the rest stay faint. The picture fills in as the Atlas grows (10 plotted so far).

Dominant aroma family

Its strongest sensory class, brightest to deepest.

citrus earthy

Limonene

Prevalence in cannabis

How often it leads a profile. Qualitative, not measured.

rare common

Limonene

Volatility · boiling point

Lower boils off sooner, reading as an earlier top note.

more volatile less volatile

Limonene

Molecular weight

C10 monoterpenes are lighter than the C15 sesquiterpenes.

lighter heavier

Limonene

Read as a table

Terpene	Dominant aroma family	Prevalence in cannabis	Volatility · boiling point	Molecular weight
Myrcene	Earthy	very common	167 °C	136 g/mol
Limonene this page	Citrus	very common	176 °C	136 g/mol
Pinene	Pine	common	155 °C	136 g/mol
Linalool	Floral	common	198 °C	154 g/mol
Beta-Caryophyllene	Spice	very common	262 °C	204 g/mol
Alpha-Humulene	Herbal	moderate	270 °C	204 g/mol
Terpinolene	Fresh	moderate	186 °C	136 g/mol
Ocimene	Fruity	uncommon	177 °C	136 g/mol
Alpha-Bisabolol	Floral	uncommon	314 °C	222 g/mol
Nerolidol	Woody	uncommon	276 °C	222 g/mol

Prevalence is a qualitative ordinal, not a measured concentration. Boiling points are approximate atmospheric-pressure values; the heavier sesquiterpenes are usually distilled under vacuum, so those figures are extrapolated.

Terpene neighborhood

Sensory & structural relatives

Terpinolene Fellow cyclic monoterpene in a shared sensory neighborhood. Terpinene Cyclic monoterpene relative. p-Cymene Aromatic relative and oxidation companion. Phellandrene Cyclic monoterpene relative.

On a certificate of analysis

How it shows up on a COA

Name variants a lab may print

Limonene · D-Limonene · d-Limonene · (R)-(+)-Limonene

Isomer note

Labs usually report one ‘limonene’ value; the D-(R) form dominates.

Reading it

Reported as a percentage of product mass; absence from a panel can reflect the lab’s method or detection limit, not true absence. Batch values swing widely.

A terpene’s absence from a panel can reflect the panel’s method or detection limit · not true absence. Values swing batch to batch.

In products

Commonly reported · never guaranteed

Bright, citrus-forward chemovars

strainCommonly reported as limonene-dominant · but a strain name does not guarantee the profile across growers, harvests, or batches.

Find products rich in Limonene Search live TerpAlerts menus for this terpene Compare terpene profilesPut two products side by side

Safety & handling

Read this before you trust a label

Pure terpene isolates are concentrated industrial chemicals · not the trace amounts in flower. Do not ingest undiluted isolates or apply them to skin without an appropriate dilution.

safety non-cannabis product reference

A product’s terpene panel cannot reliably predict an individual’s response, impairment, anxiety, or sedation. Cannabinoid dose, route, tolerance, other medications, and personal biology usually matter more.

safety whole cannabis reference

Oxidized limonene (and related fragrance compounds) can cause skin sensitization · fresh limonene is less likely to than its air-aged oxidation products.

safety non-cannabis product reference

As a volatile monoterpene, limonene is lost and altered by heat, air, and prolonged storage; heating can create products a label never shows.

established isolated terpene reference

◆THC and other cannabinoids usually influence intoxication more than any single terpene.

◆A terpene panel cannot reliably predict an individual patient’s response.

◆Pure isolates are concentrated industrial chemicals · not the trace amounts in flower.

◆Oxidation, heat, storage, and processing alter terpene chemistry.

◆Strain names do not guarantee a stable terpene profile across growers, harvests, or batches.

◆Discuss any cannabis decision, and other medications, with a qualified clinician.

Explore

Limonene, three ways

Same molecule, three lenses. The information is identical in every mode.

Keep exploring

Where to next

← Terpene Atlas indexAll terpenes Find productsLive menus rich in Limonene Compare profilesTwo products, side by side

Previous
← Myrcene Next
Pinene →

Sources (3)

TerpAlerts Cannabis Terpene Reference Guide reference
PubChem CID 440917 · D-Limonene PubChem
Terpene synthases from Cannabis sativa (PMC5371325) PMC

Last reviewed 2026-07-22 · TerpAlerts editorial

Educational information only · not medical advice, and not a claim that any cannabis product treats, cures, or prevents any condition. Evidence labels describe the strength and scope of research on the isolated compound. See the full site disclaimer and Privacy Policy.