Compound Monograph
Beta-myrcene
Beta-myrcene is a widespread monoterpene that gives hops, cannabis and many herbs part of their earthy, balsamic aroma.
Classification
Beta-myrcene is a monoterpene, part of the terpenoids class. The largest class of plant compounds, built from five-carbon isoprene units — the essential-oil aromatics, resins, bitter principles, saponins, and plant sterols.
Where Does It Come From? (6)
Beta-myrcene is a naturally occurring monoterpene, found in Hops, Cannabis, Lemongrass and 3 other sources. It is well tolerated orally (low toxicity).
Research & Evidence
Beta-myrcene is one of the most abundant monoterpenes in nature and contributes an earthy, balsamic, slightly fruity note to hops, cannabis, lemongrass, bay and many essential oils. It is widely used as a fragrance and flavour intermediate and is often discussed in cannabis literature as a major aroma component. Reported sedative and muscle-relaxant effects come largely from animal and in-vitro work and remain to be confirmed in humans.
Toxicity & Safety
Myrcene is generally regarded as low in toxicity at the levels encountered in food and essential oils. Very high doses in animal studies have raised some questions about long-term exposure, which is why purity and concentration matter in industrial settings, but ordinary dietary and aromatic exposure is considered well tolerated. Concentrated oils may irritate skin.