Cordyceps is legal to buy, sell, and possess throughout the United States. No federal or state law classifies it as a controlled substance, and the FDA treats cordyceps products as dietary supplements rather than drugs. The legal questions worth paying attention to aren’t about whether you can own it; they’re about how sellers label it, how foragers harvest it, and how importers bring it across the border.
Why Cordyceps Is Legal
Cordyceps is a genus of parasitic fungi. The two species that dominate the supplement market are Ophiocordyceps sinensis, wild-harvested at high altitudes in the Tibetan Plateau and Himalayas, and Cordyceps militaris, which is easily cultivated in laboratories and supplies most cordyceps products sold in the U.S.
Neither species contains any compound listed on the DEA’s controlled substances schedules. Psilocybin and psilocyn, the Schedule I compounds people associate with “magic mushrooms,” come from entirely different fungi.1eCFR. 21 CFR Part 1308 – Schedules of Controlled Substances There is no federal or state restriction on purchasing, possessing, or consuming cordyceps.
The FDA regulates cordyceps products as dietary supplements under the Dietary Supplement Health and Education Act of 1994.2Food and Drug Administration. Questions and Answers on Dietary Supplements Under that framework, the FDA does not approve dietary supplements for safety or effectiveness before they reach shelves.3Food and Drug Administration. Dietary Supplements Manufacturers are responsible for ensuring their products are safe, properly labeled, and not adulterated, and they must follow Current Good Manufacturing Practices for quality control, sanitary conditions, and accurate labeling.4Food and Drug Administration. Small Entity Compliance Guide: Current Good Manufacturing Practice in Manufacturing, Packaging, Labeling, or Holding Operations for Dietary Supplements Cordyceps has been designated “generally recognized as safe” (GRAS), placing it in the same regulatory category as many common food ingredients.5National Center for Biotechnology Information. LiverTox – Cordyceps
Where Sellers Cross the Line
Federal law draws a hard line between two kinds of statements a supplement label can make. A supplement may make “structure/function claims” describing how an ingredient affects normal body processes. Language like “supports immune function” or “promotes energy” is legal. Manufacturers must notify the FDA within 30 days of marketing a product with such a claim, and the label has to carry a specific disclaimer in boldface: “This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.”6U.S. Food and Drug Administration. Structure/Function Claims
What a supplement cannot do is claim to treat, cure, or prevent a specific disease. That kind of statement turns the product into an unapproved new drug under federal law, no matter what’s inside the bottle. The FDA issued a warning letter to Mushroom Revival, Inc. after the company’s website said Cordyceps militaris “may contain anti-viral properties” and could “alleviate respiratory diseases.” The agency told the company those claims caused its products to be classified as unapproved new drugs and misbranded under the Federal Food, Drug, and Cosmetic Act.7U.S. Food and Drug Administration. Mushroom Revival, Inc. – 610361 – 12/01/2020
Advertising is a separate front, policed by the Federal Trade Commission. Under Sections 5 and 12 of the FTC Act, supplement advertising has to be truthful and backed by adequate substantiation before it’s published. For health-related claims, the FTC generally requires competent and reliable scientific evidence, which in practice means randomized, controlled human clinical trials. Observational studies, animal research, and customer testimonials don’t meet that bar on their own. Companies that miss it face corrective advertising orders, civil penalties, and in the worst cases outright bans on future marketing.8Federal Trade Commission. Health Products Compliance Guidance The FDA can also seek U.S. Marshal seizures and federal court injunctions against noncompliant products.9U.S. Food and Drug Administration. Seizures and Injunctions – Health Fraud
For a buyer, the practical filter is simple. A cordyceps product with modest structure/function language and the required disclaimer is operating within the law. A product promising to treat viruses, cancer, or any other disease is not.
Harvesting Wild Cordyceps
Buying cordyceps is legal everywhere. Foraging your own runs into rules that change with the land you’re standing on.
Private Land
Foraging on private property requires the landowner’s explicit permission. Without it, you’re trespassing. This applies to any wild fungus, not just cordyceps.
National Forests and BLM Land
Many National Forests allow personal-use mushroom harvesting with quantity limits. Some set the threshold at one gallon per person without requiring a permit; others set different limits or require a free permit.10U.S. Forest Service. 2025 Mushroom Guide for Malheur, Umatilla, and Wallowa-Whitman National Forests Rules vary by forest, so check with the local ranger district before you go. Commercial harvesting on National Forest land almost always requires a separate permit.
Bureau of Land Management land generally allows harvesting “reasonable amounts” of forest products for personal use without a permit.11Bureau of Land Management. Forest and Wood Product Permits “Reasonable” isn’t defined by a single national standard, so the practical limit depends on the local BLM field office. Selling what you gather requires a permit.
National Parks
National parks are the strictest environment for foraging. Federal regulations prohibit possessing, removing, or disturbing plants and their parts from national park land unless the superintendent has specifically designated exceptions.12eCFR. 36 CFR 2.1 – Preservation of Natural, Cultural and Archeological Resources A narrow exception lets federally recognized Indian tribes negotiate agreements with park superintendents to gather plants for traditional purposes.13eCFR. 36 CFR 2.6 – Gathering of Plants or Plant Parts by Federally Recognized Indian Tribes For everyone else, collecting fungi in a national park is illegal.
Importing Cordyceps
Dried or processed cordyceps imported for consumption does not require a USDA plant protection permit. The shipment must be free of soil, insects, disease, and contamination from other plant material, and it will be inspected at the port of entry.14USDA APHIS. Fungi, Mushrooms and Mushroom Spawn FAQs Mushroom spawn intended for cultivation rather than consumption may require a PPQ526 permit from APHIS. Imported supplements also have to meet FDA labeling and manufacturing standards, and U.S. Customs and Border Protection can detain or refuse entry to products that don’t.
You’ll see claims online that Ophiocordyceps sinensis is listed under CITES, the Convention on International Trade in Endangered Species. That is not accurate. As of a February 2025 CITES review, Ophiocordyceps is not listed on any CITES appendix; the review identifies the genus as one that “may merit further research and consideration as potential candidates for inclusion,” but no international trade restrictions are in place.15Convention on International Trade in Endangered Species of Wild Fauna and Flora. A Review of Genera of Fungi and Lichens in International Trade
China separately classifies Ophiocordyceps sinensis as endangered under its domestic law and has listed it as a second-class state-protected species since 1999. If you’re sourcing wild-harvested O. sinensis from China, exporting it may violate Chinese law even though no treaty currently restricts the trade. Cordyceps militaris, the lab-cultivated species behind most products on U.S. shelves, faces no endangered-species restrictions from any jurisdiction.