Mushroom supplements
Mushroom powders and extracts that say which part of the mushroom they use and measure what is in it.
What we look for
We look for
- Fruiting body or mycelium, stated: the label says which part is used. Mycelium grown on grain can be mostly grain starch.
- Measured actives: beta-glucan by a named method (such as Megazyme) with starch or alpha-glucan reported too; for mycelium sold for erinacine A, that compound plus a starch figure.
- Tested for contaminants: heavy-metal and microbial results by lot, in a report naming the lab, date and sample, since mushrooms take up metals from what they grow on.
- A named species and origin: the Latin name, where it was grown, and an organic certification.
- Extract or powder, stated: the extraction (hot water, alcohol or both) and ratio, or plain dried powder.
We avoid
- “Full spectrum” or “mycelium on organic grain” labels that do not report starch.
- Polysaccharide figures with no method named, which can count starch.
- Several mushrooms under one blend total, with no amount for each.
- Claims to treat cancer, anxiety, dementia or any other disease.
Read the research
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7 products · best rated first
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Real MushroomsReal Mushrooms 5 Defenders Organic Mushroom Blend Capsules
A five-mushroom extract capsule (reishi, shiitake, maitake, turkey tail, chaga) in NSF’s Certified for Sport database, with 180 mg of beta-glucan a serving. The label does not split out each mushroom. NSF Certified for Sport (capsule, 90 count, lot 051226225) · Purity-IQ Certified Authentic (all five species) -
Real MushroomsReal Mushrooms Organic Cordyceps-M Extract Capsules
A Cordyceps militaris extract capsule in NSF’s Certified for Sport database. The label reports beta-glucan (80 mg) but not cordycepin, and the NSF listing shows one lot. NSF Certified for Sport (capsule, lot 012026228) · Purity-IQ Certified Authentic (Cordyceps militaris) -
Real MushroomsReal Mushrooms Organic Lion’s Mane Mushroom Powder
A hot-water lion’s mane extract with a posted SGS report: beta-glucan by the Megazyme method, plus metals and microbes. The report covers one sample, and the organic claim rests on the label. Purity-IQ Certified Authentic (Hericium erinaceus) -
FreshCapFreshCap Organic Lion’s Mane Mushroom Powder
A dual-extracted lion’s mane fruiting-body powder labeled at 31% or more beta-glucan. Every figure is the maker’s: no method, lab or report is named, and we could not find its organic certificate. -
Nature RestoreNature Restore Organic Reishi Mushroom Powder
A plain organic reishi fruiting-body powder, the cheapest we reviewed, with a heavy-metal report from Alkemist Labs. It is a whole-mushroom powder, not an extract, and no beta-glucan or microbe results are posted. USDA Organic (Organic Certifiers, Inc.) -
Real MushroomsReal Mushrooms Organic Reishi Mushroom Extract Powder
A dual-extracted reishi (hot water, then alcohol) that states beta-glucan and triterpene minimums. We found no lab report for this product, so the numbers are the maker’s guarantee. Purity-IQ Certified Authentic (Ganoderma lingzhi) -
Real MushroomsReal Mushrooms Real Mycelium (Lion’s Mane, standardized to erinacine A)
Grain-free lion’s mane mycelium labeled at 5 mg of erinacine A a serving, with lab reports for one lot on the product page. New in 2026, not organic, no starch figure, and the origin is not stated. Purity-IQ Certified Authentic (Hericium erinaceus, mycelium)