This is why citrus oils, which are rich in limonene, are particularly susceptible to oxidation and require careful handling. While these concentrated plant extracts are prized for their potency and stability, they are not immune to the laws of chemistry and degradation.
Understanding Monoterpenes Degradation and Stability Factors
Their chemical composition dictates their resilience. Shelf Life by Oil Category Not all essential oils expire at the same rate.
Generally, oils rich in monoterpenes, which are found in most citrus oils like lemon, orange, and grapefruit, have a shorter shelf life of about 1 to 2 years due to their high volatility and sensitivity to oxidation. More importantly, oxidation can alter the oil's chemical activity, potentially reducing its desired therapeutic benefits or, in some cases, creating skin-irritating compounds.
Understanding Monoterpenes Degradation and Stability Factors
This gradual alteration means that an oil stored improperly will degrade much faster than one kept in optimal conditions, regardless of its initial quality. The Role of Oxidation Oxidation is the primary chemical process that causes essential oils to degrade.
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