Michigan’s Trusted Cannabis Testing Lab

Steadfast Labs is committed to leading the cannabis-testing industry by continuing to involve the best and brightest scientific minds in our business and processes.

“We are about the consumer and keeping them safe.”

Avi Zallen, Founder and CEO of Steadfast Labs

Our Testing Methods

Steadfast protects consumers by providing the most accurate potency data and conducting a wide range of safety testing for contaminants.


Steadfast is a leader in the development and validation of microbial safety testing in cannabis.


Steadfast employs its proprietary method using UPLC and Tandem Mass Spectrometry to assure your cannabis is free of state-banned pesticides.


Terpenes in cannabis do more than provide the aromas and flavors. They are important contributors to the entourage effect.

Residual Solvents

Concentrates that pass Steadfast’s GC-MS residual solvent screen do not contain harmful levels of extraction solvents, such as butane.

Cannabinoid Potency

Steadfast uses HPLC and LC-MS/MS, for the identification and quantification of cannabinoids. Our extraction methodologies are customized to assure the most robust data for your most difficult matrices.

Heavy Metals

We use state-of-the-art, high-throughput ICP-MS to screen for lead, arsenic, mercury, cadmium, nickel, chromium, and copper.

Meet Our Team

We are the frontline consultants with our industry partners. They are ready to answer your cannabis testing and METRC questions, address any concerns, and assist you on your journey to continuously improve your products and maximize your yields.

Meet our Featured Team Member

Dana Colling– Director of Operations

Dana has over 20 years of experience working at an ISO 17025 accredited environmental testing laboratory. She started her career working as a bench technician and quickly moved into a senior analyst role and managed the organics department. After a few years, she became the technical director overseeing the quality and accuracy of the lab and its data. Dana joined the Steadfast Team in 2019 as the Director of Operations using her previous knowledge to bring new insights to the structural requirements here at Steadfast Labs. She loves being part of the Steadfast Team, providing the best customer service and the most accurate results to our clients.

Consumer-First Mentality

Everything we do at Steadfast Labs is focused on the safety of the cannabis consumer. Consumer education is the most important driver for raising the level of safety and integrity in the cannabis industry. Cannabis science is important, but it’s also fun. Steadfast is leading the way in developing consumer understanding of cannabis.

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(248) 781-4242
22018 John R. Rd,
Hazel Park, MI 48030