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  • OK: 405.724.8444
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  • Our Tests
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cannabis testing lab measuring the weight of the flower
Highgrade in the News

The CDC has identified a substance common to all its tested “vaping illness” cases.

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Highgrade Labs Oklahoma City location
Highgrade in the News

Oklahoma Gazette spoke with three Oklahoma City metro cannabis laboratories about their processes and submitted a flower sample for review.

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cannabis testing lab hero image - jars of medical cannabis ready to be tested.
Highgrade in the News

Are Oklahoma Cannabis Companies Misleading Patients by Mislabeling on Purpose?

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