The chemical has shown up in tests in other labs, too, including a US Food and Drug Administration lab in Cincinnati that found vitamin E acetate in half of the more than 400 THC samples. Lab workers looked for a range of substances that had been found in various vaping devices, including nicotine, THC and other marijuana components, plant oils, mineral oil and cutting agents used on the black market.Many who got sick said they had vaped liquids that contain THC, the high-inducing part of marijuana, with many saying they got them from friends or bought them on the black market.
For the latest test, the CDC used fluid extracted from the lungs of 29 patients in 10 states, including two who died.”Portland State University’s Robert Strongin, who’s researched e-cigarettes, welcomed the CDC report but cautioned it doesn’t mean other ingredients in vaping products are safe.Pirkle said thickeners like vitamin E acetate probably would not be routinely added to nicotine liquids, which need to be more watery for vaping.”US health officials announced a breakthrough Friday into the cause of a mysterious outbreak of vaping illnesses, reporting they have a “very strong culprit.E-cigarettes and other vaping devices heat a liquid into an inhalable vapor.About two months ago, New York drew attention to vitamin E acetate when the state’s public health lab discovered it in samples of vaping products from sick patients..Vitamin E acetate has only recently been used as a thickener in vaping fluid, particularly in black market vape cartridges. 
It’s sticky and stays in the lungs — the CDC’s Dr. Most products contained nicotine, but THC vaping has been growing more common. “They still could cause long-term harm,” he said.It was an exhaustive list of more than 1,000, said Pirkle, who oversees agency’s chemical analysis labs.“We really need the animal study to nail down cause and effect,” he said. “This was the only thing they O-Ring Kit Suppliers found. While vitamin E is safe as a vitamin pill or to use on the skin, inhaling oily droplets of it can be harmful.Juul Labs, maker of the top-selling brand of e-cigarette, issued a statement after the CDC announcement, noting that its nicotine products do not contain THC or any vitamin E compounds. In some instances, it made up more than half of the liquid in the cartridges.