#1Top Pick
3.8/10
Limited Disclosure
No Ordinary Moments has not publicly disclosed the key information needed to assess whether this product supports these goals.
per serving £1.00fruiting body
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Buying Reishi in a Pure Mushroom Powder: what the research says
Reishi (Ganoderma lucidum) has the longest documented history of any functional mushroom — over 2,000 years in Traditional Chinese Medicine — and one of the broadest evidence bases. Clinical research focuses on immune modulation, cortisol reduction, sleep quality, and fatigue. The primary actives are triterpenes (ganoderic acids) and beta-glucans; the triterpene content is almost entirely absent from mycelium-on-grain products. Dose ranges in human trials vary widely (1,500–9,000 mg per day of whole dried mushroom equivalent), making standardised extract comparisons important. Reishi is also commonly found as spore oil — a concentrated form targeting different bioactive fractions — but whole fruiting body hot-water extraction is the best-evidenced form for immune and stress outcomes.
What to look for
- 1.Hot-water extracted fruiting body — the method that preserves both beta-glucans and triterpenes
- 2.Declared triterpene percentage (ganoderic acids) on the lab report, not just beta-glucan alone
- 3.Clear dose per serving — the effective range in trials is well above what many capsules provide
What matters in a pure mushroom powder
- 01Beta-glucan percentage: in a pure powder format, there is no excuse for not declaring beta-glucan content. This single number — 25–40% for quality fruiting body extract, 5–15% for mycelium-on-grain — is the most important quality indicator in this category.
- 02Extraction method: most active compounds (beta-glucans, triterpenes) are locked behind chitin cell walls that are indigestible without hot-water extraction. "Pure mushroom powder" made from dried fruiting body without extraction delivers far fewer actives than hot-water or dual-extracted products.
- 03Third-party COA: pure powder products carry the most risk of adulteration and mislabelling because there is no other ingredient to account for dose variation. A current, third-party Certificate of Analysis from an ISO-accredited lab is the minimum standard for trust.
Want to go deeper on the research behind Reishi?
Read the Reishi evidence guide →#2
3.3/10
Limited Disclosure
Om Mushrooms has not publicly disclosed the key information needed to assess whether this product supports these goals.
per serving £1.67blend
Reishi Pure Mushroom Powder questions answered
How long does Reishi take to work?+
Human trials examining Reishi for immune modulation and fatigue typically run for 8–12 weeks, and most measurable changes in immune markers or self-reported fatigue occur after 4–8 weeks of consistent daily use. Reishi is not an acute stimulant — its effects are cumulative and most consistent when taken daily at therapeutic doses (1,500 mg+ per day of standardised extract).
Can you take Reishi before bed?+
Yes — Reishi is one of the few functional mushrooms with clinical evidence for sleep quality improvement. Its triterpene compounds (ganoderic acids) are thought to modulate GABA pathways and reduce cortisol, both relevant to sleep onset. Several trials have specifically tested evening Reishi supplementation and found improvements in sleep duration and subjective sleep quality. This makes it a reasonable choice as an evening supplement for stress and sleep goals.
Information on this platform relates to nutritional composition and public disclosure practices only. It is not medical advice. No claims are made about the therapeutic efficacy, safety, or suitability of any product. Always consult a qualified healthcare professional before taking any supplement.