Essential Oil Quality: The Difference Between a COA and GC-MS Tested Oils

May 06, 2024Healing Moon Farm and Ranch

When it comes to essential oils, quality and purity are paramount. That's why all essential oils should come with a Certificate of Analysis (COA). But what exactly is a COA, and how does it differ from GC-MS testing in the essential oil industry?

What is a Certificate of Analysis (COA)?

A Certificate of Analysis (COA) is a document provided by a third-party laboratory that confirms the chemical composition of a particular batch of essential oil. It details the specific components present in the oil, as well as their concentrations. This information is crucial for ensuring the quality and purity of the essential oil.

Why is a COA Important?

A COA is important because it provides transparency and accountability in the essential oil industry. By having access to a COA, consumers can verify the quality and authenticity of the product they are purchasing. This helps to prevent adulteration and ensures that the essential oil is safe for use.

How Does a COA Differ from GC-MS Testing?

While a COA provides a snapshot of the chemical composition of a specific batch of essential oil, Gas Chromatography-Mass Spectrometry (GC-MS) testing is a more in-depth analytical technique that can identify individual components within the oil. GC-MS testing is often used to confirm the results provided in a COA and to detect any potential contaminants or adulterants.

Overall, both a COA and GC-MS testing are essential tools for ensuring the quality and purity of essential oils. By requiring all essential oils to come with a COA, consumers can make informed decisions about the products they purchase and use.

What Does this Mean for Healing Moon?

All of the essential oils we use in our products carry a COA to ensure authenticity of the oils. We only use essential oils from Good Manufacturing Practice (GMP) certified US-based facilities. We have also begun procuring GC-MS tested essential oils wherever possible for our products. This means we are ensuring the highest quality standard of our oils used and that there are no potential cross contaminants in the oils.

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