Pesticides Testing

We ensure that all medicine available to patients is free of pesticide residues.

Potency Testing

Test the potency of your Flowers, Concentrates & Ingestible’s


We ensure that all medicine is free of microbiological contamination.

Our promise to our customers

“Our mission is to deliver accurate and expeditious results to our customers. We will accomplish this by unremittingly focusing on our three core imperatives; customer service, research, and education. We are passionately committed to lead the industry by applying state-of-the-art analytical tools and technologies while employing equally matched personnel. All these combined will allow consistent long term benefits to our customers, shareholders, employees and community.”

Why Work With Us?

Central Lab 420 is the only Medical Cannabis Laboratory to strictly operate under a pharmaceutical based program in Washington DC. We currently are working to offer full pharmaceutical grade testing services to 75% of the licensed production facilities in Washington DC, which will lead to thousands of samples tested. We will conduct all testing under the ISO 17025 standards and have our methods validated using the United State Pharmacopeia (USP) <1111> validation of compendial procedures to assess suitability of each test. Below is a summary of the processes that we currently follow for the testing of samples.

Lab Services and Programs

Cannabis Active Ingredient Profile

Terpene Analysis

Microbiological Contamination Screening

Pesticide Analysis

Heavy Metals Contamination