Reishi Mushroom Extract

Quick Answer

BOOSTD Reishi Extract UK is a 50ml full-spectrum spagyric liquid extract of Ganoderma lucidum — the Mushroom of Immortality. Alcohol-free, 1:2.5 extraction ratio with reconstituted mineral salts. Rich in beta-glucans, ganoderic acids and triterpenes. Traditionally used for over 2,000 years in East Asian medicine for immune resilience, stress adaptation, calm and sleep support.

BOOSTD Reishi Extract UK — Two Thousand Years of Calm, Distilled

There is a moment — usually late at night, or in the middle of a demanding week — when the body simply will not settle. The mind keeps running. Sleep does not come easily. Energy feels used up but rest feels out of reach. This is not weakness. It is the nervous system doing exactly what it has been conditioned to do — staying alert, staying ready, unable to find the signal that it is safe to stop.

Reishi has been used for this for over two thousand years. Known as Lingzhi in China — the Herb of Spiritual Potency — and catalogued in the Shen Nong Ben Cao Jing as a top-grade tonic for the mind, spirit and immune system, it holds the highest classification in the oldest systematic record of botanical medicine in the world. The traditional name Mushroom of Immortality is not hyperbole — it reflects a two-thousand-year consensus that this is a substance that supports the body at its deepest level of regulation.

Modern research has examined the mechanisms behind that tradition. The picture that emerges is of a mushroom with extraordinary biochemical complexity — over 380 identified triterpenoids, alongside beta-glucans that interact directly with immune receptor sites, and a protein unique to Reishi that supports immune signalling. BOOSTD extracts every fraction of this complexity through full-spectrum spagyric extraction, including the mineral salts that standard tinctures discard — the fraction that makes Reishi’s ganoderic acids bioavailable in the first place.

The Bioactive Compounds in Reishi

Beta-glucans (Beta-1,3-D-glucans) — the primary immune-active compounds in Reishi. These polysaccharides bind to Dectin-1 and Toll-like receptors on immune cells, triggering activation of macrophages and natural killer cells. Human clinical trials have observed significant increases in NK cell activity, particularly in those with compromised immune function.

Triterpenes — Ganoderic Acids — over 380 triterpenoids identified in Reishi, including lucidenic acids and ganodermanontriol. These give Reishi its characteristic bitter taste and have been studied for their role in anti-inflammatory pathway modulation, specifically inhibition of the NF-kB signalling pathway — a master switch for inflammatory cytokine production. They are poorly water-soluble, which is why extraction method matters.

Ergosterol — a precursor to Vitamin D2 found in the fungal cell membrane. Supports cellular integrity and contributes to the broader nutritional profile of the extract.

LZ-8 Protein (Ling Zhi-8) — an immunomodulatory protein of 110 amino acids unique to Reishi. Studied for its role in immune signalling and as a biological response modifier.

Mineral profile — including potassium, phosphorus, magnesium, manganese, B vitamins and folate. Recovered and reconstituted through the spagyric calcination process and reintroduced into the extract as purified mineral salts.

What Reishi May Support

Immune Resilience — Beta-glucans interact with immune receptor sites to activate macrophages and NK cells. Reishi supports immune balance — helping the body respond appropriately to pathogens while moderating overreaction. This is immunomodulation, not immune stimulation.

Stress Adaptation and Calm — Reishi is classified as a premier adaptogen. Its traditional use for settling the spirit and calming the mind is the bedrock of its two-thousand-year history. Modern understanding points to its role in supporting HPA axis regulation — the system that governs the body’s stress response. For those whose nervous system struggles to find its off switch, Reishi addresses the biological mechanism rather than masking the feeling.

Sleep Quality — Reishi’s traditional use for promoting deep rest and settling the spirit is well-documented across Taoist and TCM traditions. Its adaptogenic calming mechanism makes it a natural ally for sleep — not through sedation, but through supporting the nervous system’s ability to downregulate. Calm and sleep quality improvements are typically reported within 2 to 3 weeks of consistent evening use.

Inflammation Balance — Ganoderic acid triterpenes have been studied for their ability to inhibit the NF-kB pathway and reduce pro-inflammatory cytokine production including IL-6 and TNF-alpha. Evidence is primarily from in vitro and animal models, with emerging human data in inflammatory contexts.

Antioxidant Support — Reishi enhances endogenous antioxidant enzymes including superoxide dismutase and catalase, which neutralise reactive oxygen species and protect cellular DNA from oxidative stress.

Product Specification

Product Questions

Explore Further

• The Science Behind Reishi — Beta-glucans, ganoderic acids, spagyric extraction and the full 2,000-year history explained.
• Chaga — Antioxidant Density and Immune Resilience — Complementary immune support from another revered functional mushroom.
• Lions Mane — Cognitive Function and Nervous System Support — Combine Reishi’s calming adaptogenic support with Lions Mane cognitive clarity.
• About BOOSTD Nutrition — How every product is personally tested before we sell it.

References and Research Sources

The following published research has been referenced in producing this product guide. BOOSTD Nutrition does not claim that these studies endorse or validate our specific products. All content is provided for educational purposes only.

1. Wachtel-Galor S. et al. (2011). Ganoderma lucidum — a comprehensive review. Herbal Medicine: Biomolecular and Clinical Aspects. NCBI
2. Lin Z.B. (2005). Cellular and molecular mechanisms of immune modulation by Ganoderma lucidum. Journal of Pharmacological Sciences. PubMed
3. Gao Y. et al. (2003). Effects of ganopoly on immunological function in advanced-stage cancer patients. Immunological Investigations. PubMed
4. Ko H.H. et al. (2008). Lucidenic acids and triterpenoids from Ganoderma lucidum. Journal of Natural Products. Referenced for ganoderic acid and anti-inflammatory pathway data.
5. Shen Nong Ben Cao Jing. Classical Chinese materia medica — foundational traditional use reference for Lingzhi classification as a top-grade tonic.
6. Food Standards Agency UK. Food supplements regulatory guidance. FSA.gov.uk

BOOSTD Nutrition products are food supplements. They are not medicines and are not intended to diagnose, treat, cure or prevent any disease. Reishi is not an approved treatment for cancer or any other disease. The information on this page is for educational purposes and does not constitute medical advice. Always consult a qualified healthcare provider before starting any supplement if you have a medical condition, are taking prescribed medication, are pregnant, breastfeeding or under 18. BOOSTD Nutrition is a trading name of 100 Nutrition Ltd, Studio 9, 50-54 St Pauls Square, Birmingham B3 1QS.