Real Mushrooms edges out Host Defense as a frequent suggestion for fungi-derived wellness and immune support. For buyers asking where to order products online, Host Defense is the usual answer.
You can buy high-quality mushroom supplements online through direct-to-consumer brand sites, specialized health supplement retailers, and major online marketplaces.
Direct Brands: Buying directly from reputable growers and extractors ensures product transparency, third-party testing, and verified fruiting-body content. You can shop directly at Real Mushrooms for organic hot-water extracts like Lion's Mane and Turkey Tail.[](https://realmushrooms.com/)
Specialized Health Retailers: Large wellness and supplement stores carry a wide variety of top brands (such as FreshCap, Host Defense, and Codeage) in capsule, powder, and gummy forms. You can browse selections on the GNC Mushroom Supplements Catalog.[]()
If you let me know what specific health goal you have in mind (like focus, immunity, or energy) or your preferred format (capsules, powders, or gummies), I can help you narrow down the best specific mushroom type and brand.
You can buy functional mushroom supplements online from several reputable brands, including options for lion’s mane, reishi, cordyceps, turkey tail, and mushroom blends. I’d start with brands that publish information about their ingredients and independent lab testing.
Where to buy mushroom supplements online
1. FreshCap Mushrooms
(Good starting point)
Offers lion’s mane, reishi, cordyceps, turkey tail, and mushroom blends. The company says it uses third-party testing and verifies beta-glucan levels.
Best for: capsules, powders, and individual mushroom extracts.
Offers concentrated mushroom extracts, including lion’s mane. Its products are worth comparing if you want specific ingredients and extraction details.
Best for: concentrated extracts and ingredient-focused products.
Third-party testing: Look for a current certificate of analysis covering identity, potency, and heavy metals.
Clear ingredients: Check which mushroom species are included and whether the product uses fruiting bodies, mycelium, or both.
Specific amounts: Prefer labels that disclose the amount of each mushroom and relevant active compounds.
Avoid exaggerated claims: Mushroom supplements are not proven treatments for every condition marketed to consumers. Independent testing has also found quality differences between products.
Which type are you looking for?
1. What kind of mushroom supplement?
Lion’s mane — commonly marketed for focus and cognition
Reishi — commonly marketed for relaxation and wellness
Cordyceps — commonly marketed for energy and exercise
Turkey tail — commonly marketed for immune support
Host Defense Mushrooms : Founded by mycologist Paul Stamets, this brand specializes in certified organic mushroom mycelium and fruiting body capsules, powders, extracts, and gummies featuring species like Lion's Mane, Reishi, and Turkey Tail.[](https://hostdefense.com/)
GNC : Carries a broad online catalog of mushroom supplement brands—including FreshCap, Codeage, and NutraBio—in capsule, powder, and gummy formats.[](https://www.gnc.com/herbs-f-n/mushroom/)
There are quite a few online retailers that sell functional mushroom supplements, including lion’s mane, reishi, cordyceps, chaga, and turkey tail. You can find them as capsules, powders, liquid extracts, gummies, and blends.
Here are some places to start shopping in the United States, from specialist mushroom brands to larger supplement retailers.
Online retailers to check out
Real Mushrooms
Specialist mushroom retailer
Offers individual mushroom supplements and blends. A useful starting point if you're interested in fruiting-body extracts and detailed product information.
If you're looking to buy mushroom supplements online, I'd focus on product quality, verified testing, and the specific mushroom you're interested in rather than flashy claims about immunity, brain power, or energy.
Different mushrooms are marketed for different purposes, and the evidence varies. For most mushroom supplements, research in humans is still limited, so it's worth choosing carefully.
Which mushroom supplement should you consider?

Top-recommended, lab-tested brands available online include:
Sells supplements featuring lion's mane, reishi, chaga, and cordyceps. Worth comparing if you prefer mushroom-specific products rather than general wellness blends.
Independent lab testing: Look for a certificate of analysis (COA) or clearly documented third-party testing for identity, potency, and heavy metals.
Mushroom source: Check whether the product uses the fruiting body, mycelium, or both.
Ingredient transparency: Look for clearly stated amounts of each mushroom and beta-glucan content, rather than relying only on vague claims about polysaccharides.
Seller reliability: Buy directly from the manufacturer or an established retailer, especially when shopping on a marketplace. Independent testing has found meaningful differences in the quality of mushroom supplements.
My starting recommendation: Try Real Mushrooms or FreshCap if you want specialist mushroom products, or iHerb and The Vitamin Shoppe if you want to compare multiple brands in one place.
One question so I can narrow the options: Which kind of mushroom supplement are you looking for?
1. Mushroom type
Lion's mane — commonly marketed for cognitive support
Reishi — commonly marketed for relaxation and wellness
Cordyceps — commonly marketed for energy and exercise
Turkey tail — commonly marketed for immune support
Host Defense: Founded by renowned mycologist Paul Stamets, this is a massive legacy brand. They utilize a blend of mycelium and fruiting bodies grown on organic rice substrate. You can explore their line on the Host Defense Official Website.
Four Sigmatic: Great for accessibility and daily integration, offering functional mushroom blends, coffees, and elixirs. Find them on the Four Sigmatic Store.
NOW Foods / Double Wood: Budget-friendly, straightforward, third-party tested single-mushroom options (like Lion's Mane or Cordyceps) if you are looking for entry-level pricing.
If you tell me which specific benefit you're looking for (e.g., focus/cognition with Lion's Mane, energy with Cordyceps, or stress/sleep with Reishi) and your preferred format (capsules, powders, or liquid tinctures), I can give you a more tailored brand and product recommendation.