Pictured: Grapefruit, Lemons @pixabay

Limonene is the terpene responsible for the citrus notes in the aroma of many cannabis strains Large concentrations of Limonene are found naturally in the rinds of lemons, limes, grapefruits, and oranges. Limonene is highly bio-available, meaning it is easily absorbed into the bloodstream, and rapidly able to stimulate the olfactory system, and have direct cellular action. There are many citrusy essential oils with high Limonene contents, known to lift the mood upon inhalation. Scientific studies have shown the terpene has value as an anti-stress agent an anti-depressant agent, and has the ability to reduce O.C.D. related behaviors via oral ingestion and inhalation. The presence of Limonene has a direct effect on serotonin and dopamine levels in the body, which may account for its strong effect on mood levels. Limonene has powerful free-radical scavenging properties and is widely considered to be an antioxidant. Its anti-cancer properties have been observed in multiple scenarios. Limonene is able to block the carcinogenesis that is induced by the tar created from smoking cannabis flower. Other studies have shown Limonene can cause apoptosis or cell death of breast cancer cells. Like Myrcene, Limonene is able to offer protection from aflatoxin induced cancer by blocking the aflatoxin metabolization that causes damage to cellular DNA. Limonene has shown to the ability to offer protection from other types of cancer like lung, liver, colon, pancreas, and skin. Limonene is widely known to be anti-fungal and antibacterial, which may explain why citrus-heavy essential oils are very a common element in cleaning products.

Higher Grade strains with a relatively high percentage of Myrcene: M.A.C.