Question 1

What is Myrcene?

Accepted Answer

The most abundant terpene in cannabis, found in nearly every strain. Myrcene is the primary driver behind the "indica effect" — heavy body relaxation and sedation. Strains with >0.5% myrcene tend to produce couch-lock. It also enhances THC absorption across the blood-brain barrier, potentially intensifying psychoactive effects.

Question 2

What are the effects of Myrcene?

Accepted Answer

Myrcene is associated with the following effects: Relaxing, Sedating, Body-heavy, Couch-lock.

Question 3

What does Myrcene smell like?

Accepted Answer

Myrcene has an aroma described as: Earthy, musky, herbal with hints of clove and tropical fruit.

Question 4

What are the therapeutic uses of Myrcene?

Question 5

What is the science behind Myrcene?

Accepted Answer

**Classification:** Acyclic monoterpene (C₁₀H₁₆). The most abundant terpene in modern cannabis, often comprising 20–40% of a strain's total terpene profile.

**Boiling Point:** 167°C / 332°F. Volatilizes at lower temperatures than most cannabinoids, making it the first compound to express in a vaporizer session.

**Receptor & Molecular Activity**
Myrcene acts as a positive allosteric modulator at GABA-A receptors — the same receptor system targeted by benzodiazepines and alcohol. This is the mechanistic basis for the physical relaxation and muscle-loosening effects associated with myrcene-dominant strains. At concentrations above approximately 0.5% of a strain's total weight, this GABA modulation crosses a threshold associated with sedative onset — the origin of the widely cited "couch-lock" threshold.

Myrcene also exhibits agonist activity at alpha-2 adrenergic receptors, contributing to centrally mediated muscle relaxation independent of its GABAergic pathway. Additionally, it functions as a TRPV1 (transient receptor potential vanilloid 1) agonist — the same receptor capsaicin activates — which contributes to its analgesic and anti-inflammatory properties via inhibition of prostaglandin synthesis (specifically PGE-2).

**Entourage Dynamics**
Myrcene is the primary facilitator of the "entourage effect" via a membrane permeability mechanism. Research suggests myrcene increases the fluidity of the blood-brain barrier and neuronal cell membranes, which may accelerate THC uptake into the CNS and potentiate its psychoactive effect. This is why two strains with identical THC percentages can produce markedly different intensity profiles — myrcene concentration is often the differentiating variable.

**Clinical Research Context**
Anti-inflammatory activity has been confirmed in multiple in vitro models via NF-κB pathway inhibition. Analgesic effects in rodent models appear to involve both opioid receptor sensitization and TRPV1 pathways. The sedative dose-response relationship has been characterized in animal studies, though direct human clinical trials remain limited.

Question 6

Where else is Myrcene found outside of cannabis?

Accepted Answer

Myrcene is also found in: Mangoes, Hops, Lemongrass, Thyme, Bay leaves.

Question 7

What is the boiling point of Myrcene?

Accepted Answer

The boiling point of Myrcene is 168°C (334°F).

Myrcene

Effects

Therapeutic

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