What Does the Terpene Myrcene Do? Sources & Effects

Myrcene is a common monoterpene, a type of natural aromatic compound found in a wide variety of plants. Terpenes are responsible for the distinctive scents and flavors in many botanical species. Myrcene is widespread in nature, contributing to the unique characteristics of numerous plants and foods.

Natural Sources of Myrcene

Myrcene is naturally present in over 200 plant species, occurring in significant quantities within their essential oils. It is notably found in hops, which contribute to the aroma of beer, and in mangoes, where it adds to their characteristic scent. Other sources include herbs like thyme, lemongrass, and bay leaves.

The aroma profile of myrcene is often described as earthy, musky, and herbal, sometimes with sweet, fruity, or clove-like nuances. Its presence defines the olfactory experience of certain plants and is a key component in various essential oils.

Individual Biological Effects

Research suggests myrcene possesses several biological properties, primarily explored in preclinical studies.

One attribute is anti-inflammatory activity, shown in various models. Myrcene has been observed to inhibit inflammatory responses and reduce the production of certain inflammatory compounds like prostaglandin E-2. This effect may contribute to its potential for managing inflammatory conditions.

Myrcene also demonstrates potential analgesic, or pain-relieving, effects. Studies indicate it may reduce the perception of pain, potentially by interacting with the body’s pain receptors or influencing endogenous opioid systems. Myrcene-rich plants like lemongrass have been used in traditional folk medicine for their pain-relieving properties.

Myrcene is also associated with sedative properties and muscle relaxant effects. Animal studies using high doses have shown prolonged sleep time and reduced motor coordination, suggesting a calming influence. This indicates its potential for promoting relaxation and aiding in sleep.

Myrcene’s Role in Compound Interactions

Myrcene’s influence extends beyond its individual effects, playing a role in how various compounds interact within a plant, a concept often referred to as the “entourage effect.” This theory suggests that the combined action of multiple plant compounds, such as terpenes and cannabinoids, may produce different or enhanced outcomes compared to when consumed in isolation. Myrcene, for example, is thought to influence the absorption and effects of cannabinoids like THC and CBD.

One proposed mechanism involves myrcene potentially increasing the permeability of the blood-brain barrier. This enhanced permeability could facilitate the transport of other compounds, including cannabinoids, into the brain. Such an interaction could modify the intensity or onset of effects, contributing to a more complex physiological response.

Ongoing research continues to explore the intricate ways myrcene contributes to these synergistic effects.