Where Science meets nature

We created IESO with one goal in mind: provide the best medical cannabis to patients throughout Illinois. All of our products are tested for purity and consistency by an in-house analytical laboratory using a state-of-the-art High Performance Liquid Chromatography. That analysis is confirmed by a third-party lab. Our  cannabis extracts are created from pure flowers using a Supercritical Carbon Dioxide Fluid Extractor. Carbon dioxide gas completely evaporates leaving the purest extract possible.  Our analytical lab is overseen by a Ph.D. chemist. Learn more about our lab.

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Patient Education

We are so happy to announce our new social media channels, where we can educate patients on how to properly and more easily use their medicine.


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where Nature meets science

    Ieso’s medical cannabis is grown using the natural sunlight of Southern Illinois. Our 26,000 square foot, climate-controlled greenhouse allows for the year-round production of plants nurtured under full-spectrum sunlight to encourage development of a wide range of beneficial cannabinoids. Our products are tested for purity and potency multiple times by both in-house and third party laboratories. learn more about our grow team.

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