In 2019 and 2020, vaping-associated lung injuries killed 68 people and injured 2,807 across the United States. As reported by Leafly and later confirmed by officials at the Centers for Disease Control and Prevention (CDC), those injuries and deaths were almost exclusively associated with unlicensed THC vape cartridges purchased from the illicit market.

At the heart of the health crisis was a relatively new vape cartridge additive known as vitamin E acetate. Unlicensed cartridge manufacturers were using the substance, a common ingredient in beard cream, to thicken the cartridge oil and boost profit margins.

After the poisonings, officials at the CDC said the number one thing state cannabis regulators could do to protect public health was ensure that…

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