Analysis highlights the health risks of THC concentrates in cannabis products, suggesting further research is necessary.
During the past 2 decades, the regulatory landscape for cannabis in the United States has increasingly shifted toward legalization (1). An expansion in the variety of available consumption methods and cannabis products, including delta-9-tetrahydrocannabinol (THC), has accompanied the loosening of cannabis restrictions (2). Delta-9-tetrahydrocannabinol concentrates (also called wax, shatter, or oil) contain "extraordinarily high" levels of THC, which is the main psychoactive ingredient in marijuana (3). THC concentrates are made from an extraction process using a solvent, such as butane, to remove resin from the marijuana plant matter. The solvent is evaporated, leaving behind a substance with …
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Patricia Cavazos‐Rehg (2025) studied this question.
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