Is Host Defense Cordyceps Good?
Mycelium grown on fermented organic brown rice, not a fruiting-body extract, with no cordycepin or beta-glucan percentage published and no third-party testing claim stated on the brand's own product page.
What the label actually discloses
Host Defense's own product page describes this product as "Powered by Mushroom Mycelium™," grown on a fermented organic brown rice substrate. The brand states that both the mycelium and the fermented rice substrate are functional ingredients researched and tested for health-supporting benefits, not inert filler, though the page does not quantify what share of the finished capsule is mycelium versus rice substrate. Recommended serving is 2 capsules once per day.
Two things this label does not state: which mycelial strain is used (unlike the named Cs-4 strain in the clinical trials on this site's dosage and consumption page), and any cordycepin or beta-glucan percentage. Without either figure, there's no published way to compare this product's actual active-compound content to the research doses, or to competitors whose labels do publish these percentages. No third-party testing claim is stated on this product page either.

Host Defense Cordyceps Capsules
Mushroom mycelium grown on fermented organic brown rice, not a fruiting-body extract. Strain and cordycepin/beta-glucan content are not disclosed on the label.
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For how this compares to other named brands, see the Cordyceps hub. For dosing context from published research, see Cordyceps Dosage & Consumption.
Frequently Asked Questions
Sources
- Host Defense, Cordyceps Capsules product page: Brand's own disclosure of mycelium-on-rice source material and absence of a published beta-glucan/cordycepin percentage