Is NOW Foods Rei-Shi Good?
A Reishi/Shiitake blend at a mainstream price, with exact per-species extract ratios disclosed, but no statement of fruiting body vs. mycelium sourcing and no beta-glucan or triterpene percentage published.
What the label actually discloses
NOW Foods' Rei-Shi Mushrooms 270 mg is not a single-species Reishi product. Per the label copy, each serving lists Reishi Mushroom Extract Powder (10:1) at 90 mg, Reishi Mushroom Powder at 300 mg, and Shiitake Mushroom Extract Powder (4:1) at 150 mg, alongside other ingredients including rice flour, a hypromellose (cellulose) capsule, ascorbyl palmitate, and silicon dioxide. The recommended serving is 2 capsules, twice daily.
Two things this label does not state: whether the Reishi and Shiitake material is fruiting body, mycelium grown on grain, or a mix of both, and any beta-glucan or triterpene percentage for either species. Without either figure, there's no published way to compare this product's actual active-compound content to the doses used in clinical research, or to competitors whose labels do publish these percentages.
NOW Foods Rei-Shi Mushrooms 270 mg (Reishi/Shiitake Blend)
A blend of Reishi extract (10:1), whole Reishi powder, and Shiitake extract (4:1). Fruiting body vs. mycelium sourcing and beta-glucan/triterpene percentages are not disclosed on the label.
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For how this compares to other named brands, see the Reishi hub. For dosing context from published research, see Reishi Dosage & Consumption.
Frequently Asked Questions
Sources
- NOW Foods, Rei-Shi Mushrooms 270 mg product listing (label copy): Brand's own product; label ingredient breakdown sourced via a retailer mirroring the current label copy after the brand's own site blocked direct access