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Undisclosed Synthetic Psychedelics Found in Magic Mushroom Edibles Instead of Psilocybin

Analysis of 12 products found no psilocybin; 7 contained undisclosed substances including caffeine and synthetic psychedelics, raising safety concerns, Oregon State University researchers report.

Commercially available magic mushrooms don’t hold up to their labels, endangering consumers and eroding public trust in psychedelic therapies.

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Magic mushroom candies sold in American stores often don't contain psilocybin or muscimol—substances that cause users to hallucinate. Instead, they contain a laundry list of undeclared ingredients. This is according to a study led by Oregon State University (OSU), published in JAMA Network Open. Researchers found in 12 candies purchased in Portland […] Want to learn more about science? Read the latest articles on Scientias.nl .

·Middelharnis, Netherlands
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Scientific American broke the news in on Thursday, September 11, 2025.
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