Testing laboratory
MCR Labs
Official site, about page, testing overview, lab directory, and contact page reviewed
Testing laboratory profile
East Coast cannabis testing network with ISO/IEC 17025 accredited methods, serving licensed producers and, at its Massachusetts flagship, the general public.
- Service tier
- Independent cannabis testing laboratory network
- Capabilities
- Cannabinoid potency, terpenes, homogeneity, heavy metals, microbiological contaminants, residual solvents, pesticides, mycotoxins, vitamin E acetate, moisture content, water activity, speciation, hop latent viroid, plant nutrient analysis, and environmental monitoring. A peptide-specific capability page was not found in this review.
- Community notes
- MCR publicly welcomes consumer and home-grower sample drop-off at its Massachusetts lab, a consumer-accessible model aligned with community testing use cases; community reports remain secondary to official records.
Strengths
- ISO/IEC 17025:2017 accredited methods
- Accepts samples from consumers and home growers, not only licensees
- Published lab directory with addresses and phone numbers for three states
- Operating history since 2013
Limitations
- Cannabis samples cannot be submitted by mail; drop-off or arranged transport required
- Peptide-specific methods and sample acceptance were not established from the reviewed sources
- Public pricing was not established in this review
Editorial record
MCR Labs lists three facilities: Gardiner, Maine; Framingham, Massachusetts (flagship, 85 Speen Street); and Utica, New York. The lab states its methods are ISO/IEC 17025:2017 accredited and that it has operated since 2013 as one of the first independent cannabis testing labs on the East Coast. Unusually, MCR accepts samples from home growers, patients, and consumers in addition to licensed producers, but explicitly states it cannot accept cannabis samples by mail and that packages from unknown senders will be destroyed. No peptide-specific service menu was found.
Profile ownership: unclaimed. Company representatives will be able to propose identity and catalog updates without changing editorial or regulatory records.