If you’re looking for mushrooms to help with anxiety, you have two distinct paths: legal supplements made from functional mushrooms like reishi and lion’s mane, which you can buy today at most health stores, and psilocybin mushrooms, which remain illegal in most of the U.S. but are accessible through a small number of legal channels. Where you get them matters enormously, both for safety and for actually getting something that works.
Functional Mushrooms You Can Buy Now
Functional mushrooms are non-psychoactive species sold as dietary supplements. Two have the strongest research behind them for anxiety: reishi (Ganoderma lucidum) and lion’s mane (Hericium erinaceus). Both are legal everywhere in the U.S. and widely available online, at health food stores, and in pharmacies.
Reishi appears to work through pathways involving serotonin and GABA, two neurotransmitters closely tied to anxiety regulation. Animal studies show significant anti-anxiety effects at moderate doses, and molecular analysis found that a compound in reishi called rutin binds to anxiety-related receptors more strongly than diazepam, a common prescription anti-anxiety medication. Human research is more limited, but reishi has a long history of use for stress and sleep support.
Lion’s mane has more human data. A double-blind pilot study in healthy young adults found a trend toward reduced subjective stress after 28 days of supplementation. In menopausal women, four weeks of consuming 2 grams of powdered lion’s mane daily led to lower depression and anxiety scores. A separate trial in overweight adults found reduced anxiety after eight weeks of 550 mg daily supplementation. These effects appear to be linked to changes in nerve growth factors that influence mood.
What to Watch for When Buying Supplements
The supplement market for mushrooms has a real quality problem. There are no standardized cultivation, preparation, or testing requirements for mushroom supplements sold in the U.S. Clinical studies aren’t required before a product hits shelves, and the active ingredients in many commercial products are unknown. Adulteration with other species is common.
Look for products that specify whether they contain fruiting body, mycelium, or both, since these have different concentrations of active compounds. Third-party testing through organizations like NSF International or USP is the closest thing to a quality guarantee. A certificate of analysis (COA) from an independent lab, which reputable brands will post on their website or provide on request, confirms that what’s on the label is actually in the bottle.
Avoid “Mushroom Gummies” With Undisclosed Ingredients
A growing number of products marketed as mushroom gummies, nootropic blends, or “legal psychedelic” mushroom edibles have turned out to contain dangerous, unlabeled substances. A CDC investigation in Virginia found that gummies sold as mushroom nootropics actually contained undisclosed psilocybin, psilocin, caffeine, ephedrine, and mitragynine (the active compound in kratom, which carries a risk of opioid dependence with repeated use). People who consumed these products experienced hallucinations, altered mental status, rapid heart rate, and gastrointestinal problems, with some requiring hospital care.
If a product is marketed with vague claims about “psychedelic” or “mind-expanding” effects but sold in a state where psilocybin is illegal, treat it as a red flag. The label may not reflect what’s inside.
Legal Psilocybin in Oregon
Oregon is the only state where psilocybin is fully legal for supervised therapeutic use. Under Measure 109, passed in 2020, licensed service centers offer psilocybin sessions to adults. There’s no residency requirement, meaning anyone can travel to Oregon for a session. The process requires a preparation session with a licensed facilitator before you can purchase or consume psilocybin at a service center.
These sessions are not covered by insurance, and costs vary by provider. The experience is structured: you meet with a facilitator beforehand, consume psilocybin in a supervised setting, and have time for integration afterward. The Oregon Health Authority oversees licensing for both facilitators and service centers.
Colorado’s Emerging Program
Colorado passed the Natural Medicine Health Act in 2022, making it the second state to create a legal framework for psilocybin. The state’s Natural Medicine Division set an implementation timeline with rules taking effect in late 2024. Licensed healing centers are being established, though the program is newer and less developed than Oregon’s. If you’re in Colorado or willing to travel there, it’s worth checking the state’s Department of Revenue website for the most current status of licensed providers.
Decriminalized Cities and States
Decriminalization is not the same as legalization. In decriminalized areas, possessing psilocybin carries reduced or no criminal penalties, but there are no licensed sellers or supervised services. You can’t walk into a shop and buy psilocybin mushrooms legally.
Denver was the first city to decriminalize psilocybin in 2019. Since then, several municipalities have followed: Oakland, Santa Cruz, and Arcata in California; Ann Arbor and Washtenaw County in Michigan; Washington, D.C.; and Somerville, Cambridge, and Northampton in Massachusetts. New Jersey reclassified psilocybin possession as a disorderly offense rather than a felony. These changes reduce the legal risk of possession but don’t create any regulated access point.
International Psilocybin Retreats
Jamaica is one of the few countries where psilocybin mushrooms are entirely legal, not just decriminalized. This has enabled a growing industry of professionally run retreats that operate openly. Most retreats cost between $2,000 and $8,000, with budget options starting around $2,000 and luxury experiences reaching $8,000 or more. These typically include preparation, guided sessions, meals, and integration support.
The Netherlands is another common destination, where psilocybin truffles (a related form of the same fungi) are sold legally. If you’re considering an international retreat, look for programs with trained facilitators, medical screening processes, and clear protocols for managing difficult experiences.
Clinical Trials
Psilocybin received FDA Breakthrough Therapy designation in 2018 for treatment-resistant depression and in 2019 for major depressive disorder, which fast-tracks the review process. This has fueled a wave of clinical trials, some of which focus on anxiety specifically.
Participating in a clinical trial gives you access to pharmaceutical-grade psilocybin under medical supervision at no cost. ClinicalTrials.gov is the best place to search for active studies. Trials are currently recruiting at institutions like UNC Chapel Hill, among others. You can filter by condition (anxiety, depression), location, and enrollment status. Each listing includes direct contact information for the research team. Eligibility criteria vary, but most require that you’re an adult, not currently on certain medications, and have a documented history of the condition being studied.
Choosing the Right Path
For most people searching today, functional mushroom supplements are the most accessible and lowest-risk starting point. Reishi and lion’s mane are legal, affordable, and available immediately. The evidence is promising though not yet definitive, and side effects are generally mild.
If you’re interested in psilocybin specifically, your realistic legal options are Oregon’s service centers, an international retreat, or a clinical trial. Each comes with different costs, structures, and levels of medical oversight. Oregon offers the most regulated domestic experience. Clinical trials offer the highest level of supervision and no financial cost, but availability depends on your location and whether you meet the study criteria.