What's Really in Smoke-Shop Mushroom Gummies? Lab Tests, Brands & Hidden Tryptamines

The short answer

A mushroom gummy is not necessarily a mushroom psychedelic. Smoke shops sell gummies, chocolates, cookies and tablets labeled with words such as magic, mushroom, microdose and 5,000 mg. Those labels do not establish which psychoactive molecules are inside.

In small retail-sampling studies, researchers identified psilocin, synthetic tryptamines, cannabis compounds, caffeine and kava constituents in some products. Other samples had no psychoactive ingredient detected by the tests used. Government investigators have separately confirmed undisclosed compounds in particular branded products. It is not scientifically defensible to claim that all smoke-shop mushroom edibles contain 4-AcO-DMT, or that all products from any named brand share one recipe.

This investigation separates government findings, peer-reviewed retail chemistry, community-submitted laboratory results, manufacturer claims, and unverified leads. We do not rank brands by strength or recommend a product.

Two retail studies expose the labeling problem

Study 1 — eight gummy products. Correia and colleagues obtained eight products from seven smoke/vape shops in Portland, Oregon, then analyzed their chemistry. Seven contained psilocin, six contained 4-AcO-DMT (psilacetin), and two labeled with Amanita muscaria extracts did not have detectable muscimol or ibotenic acid but did contain serotonergic tryptamines. Another product labeled psilocybin-free tested positive for psilocybin; a purported nootropic product contained undisclosed delta-9 THC. These are findings for eight sampled products, not a national prevalence estimate. Clinical Toxicology, 2025; PMID 39977248.

Study 2 — twelve edibles. Van Breemen and colleagues analyzed eleven gummies and one chocolate obtained from Portland retailers. No psilocybin was detected in any of the twelve, including one gummy labeled as containing psilocybin. Eight products contained active constituents not declared on the packaging: examples included psilocin, chemically identified synthetic tryptamines, kavalactones, caffeine and cannabinoids. Four had no active ingredient identified by the study's methods. The researchers used chromatography and mass spectrometry, including reference standards. A nondetection still depends on the target compound and analytical detection limit. JAMA Network Open, 2025; PMID 40932719.

Why do the studies report different proportions? They examined different small sets of products using different methods. Neither result cancels the other, and neither tells us the percentage of every product sold nationally. Both demonstrate that label-to-content agreement cannot be assumed.

The strongest brand-specific regulatory evidence

Diamond Shruumz: a recall, an outbreak and mixed chemical findings

FDA testing of recalled Diamond Shruumz chocolates, cones and gummies identified 4-AcO-DMT, psilocin, pregabalin (a prescription medicine), and kavalactones in different subsets of samples. Muscimol appeared in some samples, but not all; an investigated raw ingredient contained both muscimol and ibotenic acid. The FDA explicitly noted variability by product, formulation, lot and batch.

The CDC's April 9, 2026 epidemiologic report describes 180 illnesses, 73 hospitalizations, 38 ICU admissions, 29 intubations and two associated deaths in the January–October 2024 investigation. Crucially, those 180 cases include exposures to Diamond Shruumz and other mushroom-containing chocolate products, not 180 laboratory-confirmed exposures to Diamond Shruumz alone. The FDA's November 2024 snapshot earlier described three potentially associated deaths; this article uses the CDC's later adjudicated figure of two associated deaths, and does not conflate the two classifications.

Do not consume recalled Diamond Shruumz products. The recall applies to all flavors. Sources: FDA sample-by-sample investigation and CDC MMWR, April 2026.

Trē House: California's 2025 warning

On December 11, 2025, the California Department of Public Health warned consumers not to eat TRE House Magic Mushroom gummies, chocolates or syrup. The department reported detecting 4-AcO-DET in all of the products it tested and 4-AcO-DMT in most. It identified seven tested flavor/product combinations and said its warning applied to all lots and dates of the covered products. More than 1,000 pounds of gummies were embargoed and voluntarily destroyed. This is a government regulatory finding and active product warning, not a rumor from customer reviews. Read the CDPH advisory and product list.

Community-submitted tests published in 2026 separately reported 4-HO-EPT in one Trē House Extra Strength sample from April, and 4-PrO-MET plus 4-HO-MET in an Extra Strength sample from September. A different community submission reported those MET-related compounds in a mushroom vape. The sample provenance, independent certificate authentication and correspondence to the California-tested SKUs have not been established by our review. These findings do not invalidate the California warning or prove any brand-wide formula change. Community laboratory index.

What community lab submissions say — and do not say

A community project called Demystifying, discussed in r/mysterymagicmushrooms and mirrored at Test My Shroom Gummies, has published product-specific chemistry summaries. The project disclosed sponsorship by XÜM/Advanced Mycology, involvement of a retailer supplying products, and discounted or supported testing from Tryptomics. Those relationships matter when assessing independence.

We verified the published summaries and dates, not every original signed laboratory certificate, sample chain of custody, compound reference standard or laboratory accreditation. The following table therefore describes community-reported detections in particular samples, not ingredients guaranteed in any purchase or accusations about entire brands.

Sources: community lab-report archive, Silly Dots Hero discussion and sponsor disclosure, and Silly Farms inconclusive-result discussion.

An older August 2025 community post claimed a Silly Dots Hero sample contained 4-AcO-MiPT, but later testers themselves questioned the completeness or verifiability of the earlier report. We retain it as a historical, disputed claim, not an authenticated demonstration that the formula changed. Original community claim.

In April 2026, a customer also relayed an email saying Shrumfuzed was changing formulations alongside new package sizes. That is customer-reported correspondence, not a chemistry finding; results from the March sample should not be applied to newer packages. Read the discussion.

The larger brand investigation queue

The market is bigger than the sampled products above. The following names have appeared in shop listings, manufacturer marketing or community discussions and merit product-by-product investigation. Appearance in this list is not evidence of adulteration, a chemical identification, or unlawful conduct.

This investigation queue will be updated only when a specific product, sample and source can be documented. Retail popularity, TikTok videos and Reddit trip descriptions do not identify a drug.

A warning from an adjacent novelty-product result

The community archive also lists a sample labeled Rolly Psyched Supplements in which it reported 5-MAPB, an entactogenic benzofuran not a mushroom-derived psychedelic tryptamine. This entry is outside our core mushroom-branded comparison until the exact product marketing is verified. It illustrates why a broader screen can matter; it is not evidence that other brands contain 5-MAPB. Sample report.

A plain-English chemistry guide

• Psilocybin (4-PO-DMT) is converted in the body to psilocin (4-HO-DMT), a compound whose psychedelic effects substantially involve serotonin 5-HT2A receptors.
• 4-AcO-DMT, or psilacetin, is an acetylated relative of psilocin. Conversion to psilocin is biologically plausible and supported by metabolism research, but controlled human kinetic and safety evidence is much less developed than for psilocybin.
• 4-PrO-DMT is a propionoxy analogue related to psilocin. A 2023 mouse study found psilocybin-like 5-HT2A-mediated responses and other serotonin-mediated effects. Mouse findings are not a safe human dose or a proof of identical human effects.
• 4-HO-MET, sometimes called metocin, is a different substituted tryptamine. 4-AcO-MET and 4-PrO-MET are MET-family derivatives. 4-PrO-MET is not 4-PrO-DMT: one letter denotes a different molecule.
• 4-AcO-DET, 4-HO-DET, 4-AcO-MiPT and 4-HO-EPT are further distinct chemical identities. Similar names cannot establish equal potency, toxicity or duration.
• Muscimol and ibotenic acid are associated with Amanita muscaria, a different pharmacological category. Muscimol primarily affects GABA-A receptors, rather than being another version of psilocin.
• Lion's mane, reishi, cordyceps and other functional mushrooms do not inherently explain a classic serotonin-mediated psychedelic experience.

A prodrug is a compound that can be transformed into another active molecule in the body. Calling something a possible psilocin prodrug does not establish its human risk profile or purity.

For a deeper chemical overview, see our 4-AcO-DMT monograph, 4-HO-MET reference, and research-chemical psychedelics guide.

Why does the package say 5,000 mg or 20,000 mg?

Those numbers might refer to a powder or extract blend, a marketing-defined total, or something else. Without a clear ingredient identity and independently measured constituent levels, 5,000 mg of "mushroom blend" cannot be converted into 5,000 mg of psilocybin, 4-AcO-DMT or any other psychoactive ingredient.

The same applies to hero dose, mega dose, microdose and extra strength: these are marketing terms, not validated chemical definitions.

How to read a certificate of analysis without being misled

A certificate of analysis (COA) is a report about a submitted sample. Ask:

1. Which sample? Exact manufacturer, SKU, flavor, package photograph, lot/batch, collection date and chain of custody.
2. Who tested it? Named laboratory, report number, signatures, accreditation for the relevant analytical method, and a way to authenticate the report with the lab.
3. What was measured? Psilocybin, psilocin, known tryptamine analogues, muscimol, ibotenic acid and other relevant drugs may require different panels. A cannabinoid-only report cannot settle the mushroom question.
4. What were the limits? A "not detected" finding applies only to a compound included in the method and only down to its detection limit.
5. How broadly can it apply? One tested package, one manufacturer-submitted sample, or one historical formulation does not represent all units sold.

Even broad laboratory panels may miss unknown or untargeted substances. A negative result is not a blanket safety certification.

Safety, medication interactions and legality

Unexpected intoxication can involve confusion, severe agitation, vomiting, marked sedation, changes in blood pressure or heart rhythm, and seizures. Because multiple drug classes have appeared in this category, a consumer cannot safely assume the effects or interactions will match ordinary psilocybin mushrooms. Avoid mixing with alcohol, sedatives, stimulants, cannabis or other psychoactives; combinations may complicate assessment and treatment. Prescription medicines can also matter, and no single interaction rule covers every unidentified product.

Seek urgent medical care for seizures, loss of consciousness, trouble breathing, severe confusion or chest pain. U.S. Poison Control is available at 1-800-222-1222. Preserve the package for clinicians, but do not delay care to identify a chemical.

For non-emergency substance-use support in the U.S., the SAMHSA National Helpline is 1-800-662-HELP (4357): Source: samhsa.gov. Support and information resources do not replace emergency care.

In December 2024, FDA stated that Amanita muscaria, its extracts, and muscimol/ibotenic acid/muscarine are not authorized as conventional-food ingredients. Psilocybin and psilocin are federally controlled; the legal status of synthetic analogues also depends on applicable federal and state law and intended use. Availability in a smoke shop is not evidence of legality or safety. FDA Amanita advisory.

Frequently asked questions

Are all smoke-shop mushroom gummies just 4-AcO-DMT?

No. It was identified in six of eight products in one small 2025 study, but other samples contained psilocin, different tryptamines, cannabinoids, caffeine, kavalactones, or no detected active compounds. You cannot infer a particular brand or package from that statistic.

Did Road Trip switch from 4-AcO-DMT to 4-HO-MET?

A March 2026 community-submitted Road Trip gummy report lists 4-HO-MET. Customers have claimed a formula change, but we do not have an authenticated series of manufacturer-controlled historical samples establishing when or whether a specific product changed. A single recent sample cannot prove an industry-wide or permanent switch.

Do Silly Dots Hero Dose and Mega Dose have the same ingredients?

The separate March and June 2026 community submissions each list 4-AcO-DET and 4-HO-DET. They do not prove equal amounts in every tablet or rule out other compounds. An older, disputed report listed a different tryptamine.

Is 4-PrO-DMT the same as 4-PrO-MET?

No. Both belong to related synthetic tryptamine families but differ chemically. Neither may be substituted for the other when interpreting a report, a pharmacology study or an adverse event.

Does a lab report showing no THC prove a mushroom edible is safe?

No. THC screening does not identify most tryptamines, muscimol, prescription medicines or other unexpected compounds. It says only what was measured within that assay.

Sources, evidence levels and corrections

High-confidence source types for the precise findings cited: FDA/CDPH regulatory testing and CDC epidemiology. Moderate-confidence for their sampled retail products: two peer-reviewed analytical studies, neither a population-wide market estimate. Lower-confidence, preliminary and batch-specific: community laboratory summaries and discussions, particularly when underlying certificates and chain of custody are not independently authenticated. Unverified: brand-marketing claims, customer experiences and names in the investigation queue.

Editorial update policy: Whenever a new result arrives, retain the old finding with the date, sample identity, tested analytes and any sponsor relationship. Do not silently overwrite a historical compound with a newer report. Correct material errors visibly and distinguish detected, not detected, not tested, and unknown.

Independence: This article contains no affiliate rankings, retail purchasing links or psychedelic dosing recommendations. The inclusion of a brand does not imply wrongdoing or endorsement. Analytical findings are sample-specific except where a regulator explicitly defines a broader product warning.

Last researched: October 23, 2026.