Greenleaf Labs

Greenleaf Labs For educational purposes only. 21+

OMMA-licensed and PJLA-accredited, Greenleaf Labs is committed to delivering fast, accurate, and consistent results you can trust—backed by transparency every step of the way.

Precision isn't optional—it's what sets industry leaders apart.When choosing a testing laboratory, accuracy, consistency...
09/01/2026

Precision isn't optional—it's what sets industry leaders apart.

When choosing a testing laboratory, accuracy, consistency, and turnaround time all matter. The right lab doesn't just deliver results—it provides the confidence you need to make informed decisions.

At Greenleaf Labs, we're committed to delivering reliable data you can trust, backed by responsive service and scientific expertise.

What matters most to you when choosing a laboratory?

📞 (918) 564-2760
📧 [email protected]

18+ | For educational purposes only. Nothing for sale.

Accurate laboratory testing supports better decisions at every stage of the cannabis industry.At Greenleaf Labs, we deli...
08/29/2026

Accurate laboratory testing supports better decisions at every stage of the cannabis industry.

At Greenleaf Labs, we deliver reliable results with fast turnaround times to help cultivators evaluate their harvests, manufacturers produce consistent products, and licensed operators make informed, data-driven decisions.

When accuracy matters, trust Greenleaf Labs.

📞 (918) 564-2760📧 [email protected]

18+ | For educational purposes only. Nothing for sale.

Meet Our Office Manager: Crystal HargerSince joining Greenleaf Labs at its founding in 2021, Crystal Harger has helped b...
08/27/2026

Meet Our Office Manager: Crystal Harger

Since joining Greenleaf Labs at its founding in 2021, Crystal Harger has helped build the operational foundation that keeps our laboratory running efficiently every day.

As Office Manager, Crystal oversees daily operations, coordinates documentation and logistics, and helps ensure every sample is accurately tracked from arrival to reporting. Her organization, attention to detail, and commitment to excellence allow our scientific team to stay focused on delivering reliable, compliant testing for Oklahoma's cannabis industry.

We're proud to have Crystal as an essential part of the Greenleaf Labs team.

Happy National Dog Day from Greenleaf Labs! 🐾💚Today, we’re giving a little extra appreciation to the four-legged friends...
08/26/2026

Happy National Dog Day from Greenleaf Labs! 🐾💚

Today, we’re giving a little extra appreciation to the four-legged friends who make every day better. Whether they’re supervising from home, riding shotgun, or just waiting for us at the door, dogs have a way of making life a whole lot happier.

Here’s to the pups behind the people of Greenleaf Labs. 🐶

Moisture Content & Water ActivityToo much moisture can lead to mold. Too little can impact quality.👉 Finding the right b...
08/26/2026

Moisture Content & Water Activity

Too much moisture can lead to mold. Too little can impact quality.
👉 Finding the right balance is critical for safety and shelf life.

Contact Greenleaf Labs for accurate cannabis testing data:
(918) 564-2760 | [email protected]

Two cannabis products can have similar THC percentages and still offer very different profiles.That is why laboratory te...
08/25/2026

Two cannabis products can have similar THC percentages and still offer very different profiles.

That is why laboratory testing should look beyond one number. Cannabinoids, terpenes, moisture content, and other testing data all help tell the full story.

The data matters.

Get the full picture with Greenleaf Labs. Call (918) 564-2760 or email [email protected].

18+ | For educational purposes only. Nothing for sale.

Meet Our Operations ManagerBrennan DoolyBrennan Dooly helps keep Greenleaf Labs operating efficiently, consistently, and...
08/21/2026

Meet Our Operations Manager
Brennan Dooly

Brennan Dooly helps keep Greenleaf Labs operating efficiently, consistently, and in full regulatory compliance. With experience in healthcare operations, clinical laboratory management, and the cannabis industry, he brings a strong focus on quality, teamwork, and dependable processes.

A Business Management graduate of the University of Arkansas–Fort Smith, Brennan plays a key role in supporting reliable testing, efficient laboratory operations, and exceptional service for growers, processors, and dispensaries across Oklahoma.

In cannabis operations, timing matters.R&D testing gives growers, processors, and manufacturers useful information befor...
08/19/2026

In cannabis operations, timing matters.

R&D testing gives growers, processors, and manufacturers useful information before final compliance testing, when there may still be time to evaluate, adjust, or improve a process.

That can help reduce delays, protect inventory planning, and support stronger quality control. At Greenleaf Labs, we help Oklahoma cannabis businesses use lab data as a practical tool, not just a final requirement.

New customers can receive one complimentary R&D test. R&D testing is for informational purposes only and does not satisfy OMMA compliance testing requirements. Limit one free test per licensed business.

📞 (918) 564-2760
📧 [email protected]

Accuracy starts with the right process.Reliable cannabis testing begins long before a sample reaches the instrument. At ...
08/18/2026

Accuracy starts with the right process.

Reliable cannabis testing begins long before a sample reaches the instrument. At Greenleaf Labs, we use advanced digestion equipment to help prepare samples more completely before analysis, supporting cleaner preparation, stronger analytical performance, and dependable laboratory data.

Sample preparation plays an important role in the quality of testing results. Every step matters when producing accurate, consistent, and defensible data for Oklahoma cannabis cultivators, processors, and dispensaries.

When compliance matters, trust a laboratory that focuses on the details.

📞 (918) 564-2760
📧 [email protected]

18+ | For educational purposes only. Laboratory testing services for licensed Oklahoma cannabis businesses.

As the cannabis industry evolves, education becomes even more important.New products, new cannabinoids, and new consumer...
08/13/2026

As the cannabis industry evolves, education becomes even more important.

New products, new cannabinoids, and new consumer questions continue to emerge. Accurate laboratory testing helps operators understand what is actually present and make informed decisions.

Clarity starts with reliable data.

Partner with Greenleaf Labs for accurate cannabis testing. Call (918) 564-2760 or email [email protected].

18+ | For educational purposes only. Nothing for sale.

Address

610 Dewey
Poteau, OK
74953

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+19185642760

Website

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