Your Cart is Empty

Lab Testing

G1 relies on competent and accurate lab testing to ensure our products meet or exceed the California Cannabis testing requirements. Below are 3 of the testing laboratories that we have selected based on ring tests sent throughout the state.


Since 1943, Anresco Laboratories has been an accurate and reliable source of independent analysis, research and consulting services to food and food-related industries. We are ISO/IEC 17025:2005 accredited and recognized by the Food and Drug Administration (FDA). Our corporate headquarters is located in San Francisco, and our services are supported by branch operations in Los Angeles, New York, and Miami. Our scientists offer comprehensive skills based on education and extensive experience in nutritional analysis, food quality, food safety and FDA import issues. We have specific and extensive understanding of FDA import requirements for sampling and analysis, having performed such work for more than 35 years. We are recognized experts in the analysis of foods for pesticides, herbicides, and drug residues.



Harrens Lab Inc. is a third-party analytical laboratory located in Hayward, California. We offer complete solutions for our customers through consulting, training, inspecting and analyzing. Harrens Lab is ISO/IEC 17025 accredited by the American Association for Laboratory Accreditation (A2LA) and is recognized by the Food and Drug Administration (FDA).



PharmLabs Coachella Valley is ISO/IEC 17025:2005 Certification L17-427-3 and offers potency, terpene, residual solvent, heavy metal, microbiological and pesticide testing for the cannabis community and beyond! ISO/IEC 17025:2005 are requirements for the competence of testing and calibration of analytic laboratories and is the main ISO standard used by testing and calibration laboratories. In most major countries, ISO/IEC 17025:2005 is the standard for which most labs must hold accreditation in order to be deemed technically competent. In many cases, suppliers and regulatory authorities will not accept test or calibration results from a lab that is not accredited.