This triple-mushroom blend combines **Reishi**, **Shiitake**, and **Maitake** for immune support, but two of the three are well below clinical doses. Reishi totals about 130mg per capsule (including a standardized extract with 4% triterpenoids and 7% beta-glucans), while research typically uses 1,000–3,000mg daily. Even at two capsules, you're getting only about 26% of the minimum studied Reishi dose.

**Maitake** is the best-dosed of the three — it comes as a 4:1 extract, bringing its equivalent to about 400mg per capsule. At two capsules daily, you'd reach roughly 800mg equivalent, within the 500–2,500mg clinical range. The standardized Reishi extract with defined triterpenoid and beta-glucan levels is a plus for quality.

The core tradeoff is that splitting capsule space three ways leaves Reishi and Shiitake underdosed. If immune support is your primary goal, you'd benefit from a higher daily capsule count or a formula focused on fewer mushrooms at full clinical doses.

BioStacks
Solgar

Reishi Shiitake Maitake Mushroom Extract

1 Capsule · 50 servings

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Every active here is dosed below the amount studied to work. See how each one compares in the breakdown below.

What it does

A combination of 3 label ingredients.

Maitake Mushroom

fruiting bodyStandard

Studied for immune effects; marker changes do not establish fewer infections or improved cancer outcomes.

Reishi mushroom

fruiting bodyGrade —

Studied for immune function and fatigue; benefits remain uncertain and vary by preparation and population.

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Ingredients (5)

Other ingredients

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Lab testing

How to take it

With or without food

On the label

Suggested Use: As a dietary supplement for adults, take one (1) vegetable capsule up to two times daily, preferably with meals or as directed by a healthcare practitioner.

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

Not medical advice. Consult your healthcare professional.

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