Colorado Cannabis Vape Products Test Positive for Banned Hemp-Derived THC Compounds

An independent investigation has revealed that several cannabis vape products sold in Denver-area dispensaries contain hemp-derived cannabinoids that are banned under Colorado law. According to lab tests reported by The Denver Gazette and ProPublica, three out of fourteen tested cannabis vaporizer products purchased from licensed stores showed evidence of prohibited compounds such as delta-8 and delta-10 THC. This practice, known as 'hemp inversion,' is raising alarm among industry experts who warn it could undermine the integrity and safety of Colorado’s $1.4 billion legal cannabis market

Hemp inversion, the introduction of hemp-derived THC into regulated cannabis supply chains, is not a new concern for Colorado operators. As reported by MJBizDaily, complaints about this illicit practice have circulated for more than a year, with some in the industry providing detailed accounts of how bad actors evade the state's track-and-trace system. Critics argue that regulators have been slow to introduce robust testing protocols and enforcement mechanisms, allowing inversion to persist. A recent effort by The Denver Gazette and ProPublica to independently purchase and test vape products provided concrete evidence that banned synthetic cannabinoids are making their way onto legal shelves

The investigation specifically identified products from licensed manufacturers Dutch Botanicals, Rockin Extracts, and C2CC (operating as Bonanza) as containing prohibited substances or solvent residues. Two Dutch Botanicals vape products tested positive for delta-8 THC, a finding that coincided with the company's license suspension in May over allegations of producing intoxicating hemp-derived THC. Dutch Botanicals owner Jenny Tran has denied the use of hemp, stating she is 'battling to keep her license in the face of state action,' as reported by The Gazette. Meanwhile, Rockin Extracts' product showed unexpected levels of delta-10 THC and solvent residues, which their attorney attributed to 'natural degradation' and third-party sourcing. A Bonanza vape contained toluene, a solvent often associated with hemp conversion processes, though the company insisted the distillate was purchased from a supplier with proper certificates of analysis

The regulatory response in Colorado has so far been limited. The Marijuana Enforcement Division (MED) has declined to comment publicly on the test results, while a lawsuit filed by cultivator Mammoth last year accused regulators of failing to stop what it called a 'blueprint for laundering marijuana' into the legal market. Although a judge declined to compel action, the MED launched a pilot testing program last fall aimed at detecting inversion, but according to The Gazette, the program remains in its early stages and would require additional resources for full implementation

Industry experts warn that continued hemp inversion could pose significant risks for both consumers and the broader legal market. Synthetic cannabinoids produced from hemp-derived CBD can contain impurities or solvent residues, potentially endangering public health. Additionally, these practices threaten the viability of licensed operators who comply with state regulations and invest in rigorous testing. As one manufacturer put it, 'We require certificates of analysis from all our suppliers,' highlighting the difficulty in guaranteeing compliance throughout a complex supply chain

From the OG Lab newsroom perspective, the findings in Colorado spotlight the urgent need for more comprehensive regulatory oversight and stricter enforcement to protect both consumers and the legal cannabis industry. As states grapple with the influx of hemp-derived cannabinoids and the challenge of inversion, the effectiveness of pilot testing programs and future policy updates will be crucial to ensuring product safety and maintaining market integrity. This issue is likely to remain a focal point for regulators and industry stakeholders nationwide as the cannabis marketplace evolves