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

Will Arce – Analytical Chemist

An entrepreneurial thinker with a passion for customer service, Will joined the Steadfast team in 2019 after earning his degree in chemistry from the University of Detroit-Mercy. Leveraging his strong scientific research background and training, will works alongside Steadfast’s industry partners to deliver safe, high-quality potency testing and field sampling services.

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