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brain HEALTH

Réishi 10: 1

£30.00 £30.00

Promotes Deep Relaxation

Supports N-REM Sleep

Potent 10:1 Extract

Grown Wood

35-51% of Beta-d-glucans

100% Organic Fruiting bodies

Supports Immune System

Certified By Eurofins

Pure Mushrooms, Zero Fillers

6 en stock

60-day money back guarantee

"game changer for stress and anxiety"

Unmatched Sleep Quality
Experience deeper, more rejuvenating rest with our premium extract, naturally promoting relaxation and restfulness for a restorative sleep cycle.

Robust Immune Support
Fortified with 51% beta-glucans, this formulation boosts your immune defenses, offering robust protection against environmental and seasonal stresses.

Heart Health Enhancer
Support your cardiovascular wellness with naturally occurring bioactive components that aid in blood circulation and heart function.

Pure and Potent
Our product offers unmatched purity, utilizing 100% fruiting bodies with no fillers or additives, ensuring you receive all the inherent benefits.

How to use

Evening Routine: Take 2-3 capsules with water, 30-60 minutes before bedtime to promote relaxation and improve sleep quality.

Morning Option for Anxiety: If using Reishi for stress management or to alleviate anxiety, capsules can also be taken in the morning to help maintain a calm and focused start to the day.

Usage Cycle: For the best results, continue use for a four-month cycle, followed by a two-week break. Repeat as necessary.

Combination Therapy: For enhanced immune support, consider combining Reishi capsules with Chaga mushroom.

Shipping & Delivery

For UK orders
All orders are dispatched from our UK warehouse.
- Orders over £50: Free shipping
- Orders under £50: Standard delivery (2-3 days) costs £3.99, with an option for next-day delivery at £4.99

For EU orders
Orders are fulfilled from our EU warehouse.
- Orders over €50: Free shipping
- Orders under €50: Standard delivery (2-3 days) costs €4.29, with a next-day delivery option at €5.23.

International orders
- Orders over €150: Free shipping
- Orders under €150: Standard delivery (5-7 days) at €14.29


We stand by our products with a 60-day satisfaction guarantee. If you are not completely satisfied within this period, please contact us for a full refund or exchange to ensure your satisfaction is met.


100% Fruiting Body of Reishi Mushroom


Take Reishi in the evening to help unwind after a long day. Its adaptogenic qualities can help balance stress hormones and promote relaxation, making it ideal for evening consumption to aid in decompression and stress relief.

brain HEALTH

Réishi 10: 1


Unlock Nature’s Secret To Deeper Sleep With 10x More Potent Reishi Extract

When it comes to Reishi and mushrooms in general, quality and potency can vary drastically. Most products use subpar ingredients, ineffective dosages, or fillers that dilute their effectiveness. We solved this problem by selecting the world’s most experienced herbalists to deliver top 1% of mushroom extracts.

100% Fruiting Bodies

Absolutely ZERO Fillers

35-45% of Beta-D-Glucans

Certified Organic

Extremely Potent

Sustainable Mushroom Farms

Sustainable growth protocols 100% fruiting bodies Absolutely ZERO fillers
35-45% of Beta-D-Glucans Certified Organic High Potency
I love Reishi combined with tea. In my opinion, it is the perfect drink for the evening. It wonderfully tones, calms, soothes... It makes sleep extremely regenerating. I highly recommend it!
— Jack W., Verified Buyer
"I was skeptical at first, but after reading about the benefits, I decided to give it a try. I'm impressed! After just a couple of weeks, it has kept me much more focused, both mentally and physically, and nothing seems to phase or stress me out. It’s also been proven effective over thousands of years."
— Nika L. Verified Customer
"I've tried many mushroom supplements over the past few years, and none have worked as well as Solve Labs."
— Sarah L., Edible Ethics
Mushroom of Immortality

Ancient healer
The Chinese refer to reishi as the "elixir of immortality", believing in its strong anti-aging properties. In addition to their tonic effect, reishi mushrooms support the immune system and maintain healthy blood cholesterol levels.

Research has identified a wide spectrum of bioactive substances responsible for the effects of Reishi. These include mainly beta-glucan and triterpenes - to these compounds Reishi owes its characteristic bitter taste. 

Turn ON your deep sleep

Superior Potency

Explore the natural path to better sleep with our high-strength Reishi extract, a cornerstone of wellness traditions for its soothing properties. Renowned for its capacity to enhance deep, restorative NREM sleep, Reishi is not just a supplement; it's a gateway to improved nightly rejuvenation.

Rich in beta-D-glucans, Reishi supports your body's immune function and helps manage stress levels. These benefits are crucial for cultivating the conditions needed for deep sleep. By moderating stress and enhancing relaxation, our Reishi extract assists in harmonizing your sleep cycle and promoting overall tranquility.


“Reishi mushroom improves sleep quality and reduces insomnia by modulating the body's stress response and immune system. Its bioactive components, including polysaccharides and triterpenoids, contribute to its sedative effects, making it beneficial for those suffering from sleep disorders” (Batra et al., 2013).

“Reishi supplementation promotes better sleep through immune modulation by increasing the production of immunoglobulin A (IgA) and alpha-defensins in the gut. This immune-boosting effect helps to maintain a balanced gut microbiota, which is crucial for a good night's sleep” (Kubota et al., 2018).

“Reishi extract has significant effects on reducing sleep latency. Studies indicate that the mushroom's adaptogenic properties help to lower the levels of cortisol, a stress hormone that can disrupt sleep patterns. This reduction in cortisol levels helps individuals fall asleep faster” (Kosma, 2001).

“Ganoderma lucidum enhances sleep by modulating the central nervous system. Regular administration of Reishi extract improves the energy supply to the brain cortex and decreases the prevalence of inhibitory neurotransmitters, which are characteristic of conditions that impair sleep quality” (Shevelev et al., 2015).

Elevate Your
Evening Ritual

Unlock the power of Solvelabs' Reishi Mushroom Extract as part of your evening routine. Perfect for winding down after a busy day, Reishi’s calming properties make it an essential for those looking to enhance their nighttime recovery and relaxation.

Mix our Reishi extract with the rich, soothing taste of cacao for a delicious bedtime treat, or experiment with different beverages to discover your ideal evening drink. Enjoy the harmonizing effects of Reishi, designed to help you relax and rejuvenate, ensuring you wake up refreshed and ready to take on the day.

Take 45 minutes before bed

Mix with warm milk or tea

Ideal for evening relaxation

Reishi's Protocol

For the best results from Reishi mushroom, we suggest taking it consistently for four months. This lets its active ingredients build up in your system, offering optimal benefits.

After this period, take a two-week break before starting a new cycle. For enhanced effects, consider combining it with other functional mushrooms to experience a synergistic benefit.










Only From

The Source

Our Mushroom extracts are sourced from its native habitat in Siberia, Fujian (China) or Mongolia. Regions renowned for its optimal growing conditions. Nestled at ideal elevations and benefiting from perfect humidity levels, they have fostered a mushroom cultivation tradition that spans over hundreds of years.

Our mushrooms are nurtured on secluded, family-owned farms that adhere to strict growth protocols, ensuring the highest quality. Each batch is rigorously tested by Eurofins and regularly checked for heavy metals to meet our exacting standards.

Certified organic and crafted by only the finest herbalists, our Lion’s Mane extract is a testament to centuries of expertise, delivering purity and tradition in every dose, optimally grown in the world's most suitable environment.


Why our Reishi extract?

10:1 extract - concentrated form of extract to ensure bioavailability of raw material

100% Natural - no unnecessary additives or fillers

Vegetable capsules - suitable for vegans and vegetarians

100% Fruiting bodies - no mycelium mixed with grain

Grown on wood - fruited on enriched sawdust to ensure high synthesis of active compounds

High beta-glucan content - tested in independent laboratories to ensure high beta glucan content

What does the 10:1 extract ratio mean?

The 10:1 ratio means that 1 kg of dried Reishi mushrooms is used to produce 100 g of concentrated extract, ensuring a potent and effective dose in a smaller quantity.

What are the active compounds in Reishi Mushroom Powder?

Polysaccharides in Reishi are known for their immune-boosting properties. They enhance the activity of white blood cells, which help fight infections and improve overall immune function. These polysaccharides also have significant antioxidant properties, protecting cells from oxidative stress (Gharib et al., 2022).

Triterpenoids found in Reishi mushrooms exhibit anti-inflammatory, anti-tumor, and liver-protective properties. These compounds are responsible for the bitter taste of Reishi and have been shown to inhibit the growth of cancer cells and reduce inflammation (Cör et al., 2018).

Peptides and Proteins:
Reishi contains various peptides and proteins, including glycoproteins, which play roles in modulating immune responses and exhibit antioxidant activity. They contribute to the production of functional molecules with potential health benefits, such as ACE inhibitory activities which can help manage blood pressure (Kumakura et al., 2018).

Phenolic Compounds:
Phenolics in Reishi mushrooms are powerful antioxidants. They help neutralize free radicals, thereby preventing cell damage and reducing the risk of chronic diseases. These compounds also contribute to the mushroom's anti-inflammatory properties (Szydłowska-Tutaj et al., 2023).

Reishi mushrooms contain sterols, which are compounds similar to cholesterol but beneficial to health. Sterols have been shown to reduce cholesterol levels and have anti-inflammatory properties, contributing to overall cardiovascular health (Cör et al., 2018).

Vitamins and Minerals:
Reishi Mushroom Powder is rich in vitamins (A, B1, B2, B3, B6, C, and E) and minerals (potassium, phosphorus, calcium, magnesium, sodium, iron, zinc, manganese, copper, and selenium). These nutrients are essential for various bodily functions, including immune support, skin health, and bone strength (Gharib et al., 2022).

Lycopene and Flavonoids:
Lycopene and flavonoids in Reishi contribute to its antioxidant capacity. These compounds help in reducing oxidative stress and inflammation, and they also play a role in preventing certain types of cancer and cardiovascular diseases (Gharib et al., 2022).

What part of the mushroom was the extract prepared from?

We only use the fruiting bodies of the mushroom. This is due to the desire to obtain a pure mushroom extract. When dealing with mycelium-based supplements, unfortunately it may turn out that up to 60-70% of such an extract will be starch instead of mushroom without the health-promoting effects attributed to mushrooms.

This is due to the inability to separate the mycelium from the medium on which it grew. Once the fungus has colonised the medium, the whole thing is ground up and subjected to extraction processes. This is a cheap and quick way of growing mushrooms without bringing them to the fruiting stage.

How many polysaccharides does the extract contain?

Our mushroom extracts are not standardised to a specific amount of polysaccharides, as this is not an indicator of the quality of the extract.

Mushroom-based products contain many types of polysaccharides (polysaccharides), such as chitin, alpha glucans or beta glucans.

Alpha glucans are compounds that do not have the properties attributed to fungi. They are usually derived from the starchy medium on which the fungus grows. They are used in mycelium products or mushroom biomass, which is a mixture of mycelium and fruiting bodies.

Active substances are also polysaccharides, but in a different configuration - Beta-D-glucans 1-3 and 1-6. These are found in the fruiting bodies of mushrooms.

For more on beta-glucan and a survey of our mushrooms, see the article:

What is the mushroom extraction process like?

Dried mushroom fruiting bodies are ground to a fine dust and then extracted using hot water and alcohol.

The water dissolves the cell walls of the mushrooms, which are made of chitin, and extracts compounds such as beta glucans (biologically active polysaccharides in mushrooms). Since we do not have an enzyme that can effectively digest chitin - hot water extraction is fundamental to the bioavailability of fungal preparations. Alcohol, on the other hand, allows the extraction of water-insoluble compounds such as triterpenes.

Once the extract has been concentrated, spray drying follows, leaving a final dry extract. Spray drying is the optimum dehydration process for wet extracts - keeping nutrient losses to a minimum.

What distinguishes an extract from a ground mushroom?

Extraction is the optimal way of processing mushrooms to extract the active substances. These are encapsulated in the cell walls of the mushrooms, which are made up of chitin.

We do not have an enzyme that is able to digest chitin and for this reason mushrooms must be subjected to extraction processes. Extraction makes the raw material fully assimilable by our body.

What is the best time to take mushroom supplements?

Lion's mane and Cordyceps, as mushrooms support alertness and increase energy levels, are best taken in the first part of the day or before a workout. If you're adding mushrooms to your coffee, it's a good idea to limit your coffee intake to between 13:00 and 14:00. This will reduce the negative effects of caffeine on sleep quality. A good alternative to coffee is to drink mushrooms in tea.

Reishi, due to its tonic and calming properties on the nervous system, is worth taking in the evening, preferably with green tea or cocoa.
In the case of Chaga mushrooms, the time of consumption does not matter.

How does Reishi support immune function?

Reishi mushroom (Ganoderma lucidum) is well-known for its ability to enhance immune function. It achieves this by stimulating the activity of macrophages, natural killer cells, and T lymphocytes, and providing antioxidant protection. Here’s how these mechanisms work:

1. Stimulation of Macrophages:
Reishi's polysaccharides, particularly beta-glucans, have been shown to enhance the activity of macrophages. These immune cells play a crucial role in detecting and destroying pathogens. Studies indicate that beta-glucans from Reishi induce macrophage activation, leading to increased production of cytokines such as TNF-α, IL-1β, and IL-6, which are essential for immune response (Batbayar et al., 2011).

2. Activation of Natural Killer Cells:
Reishi mushroom also boosts the activity of natural killer (NK) cells, which are critical for the body's defense against tumors and virally infected cells. Research shows that Reishi polysaccharides enhance the cytotoxic activity of NK cells, improving their ability to target and destroy harmful cells (Schaeffer et al., 2007).

3. Enhancement of T Lymphocytes:
Reishi influences the activity and proliferation of T lymphocytes, which are vital for adaptive immunity. Studies demonstrate that Reishi extracts can modulate the differentiation of T helper cells, particularly promoting the formation of Th17 cells, which play a role in mucosal immunity and inflammation (Yoshida et al., 2012).

4. Antioxidant Protection:
Reishi provides strong antioxidant protection, which is crucial for maintaining immune function. Antioxidants in Reishi help protect immune cells from oxidative stress and damage, thus ensuring their proper function. The polysaccharides and triterpenoids in Reishi contribute significantly to its antioxidant capacity (Cör et al., 2018).

What is the significance of Reishi's bitter taste?

The bitter taste of Reishi is due to the presence of triterpenes, which are indicative of high quality. If the extract lacks bitterness, it may indicate a poor quality product.

Is Reishi Mushroom Powder safe for everyone?

Reishi is generally safe for most people, but it is not recommended for pregnant or breastfeeding women. Always consult a healthcare provider before starting any new supplement, especially if you have existing health conditions or are taking medications.

What are Beta-D-glucans?

Beta-D-glucans are a type of complex sugar made from long chains of glucose molecules. They are found in nature, especially in mushrooms, and are known for their strong ability to support and regulate the immune system. [2]Beta-D-glucans from mushrooms are considered to be more beneficial than those sourced from cereals like oats and barley, yeasts, or certain algae. This is due to their distinct structural features and the health advantages they offer. At Solve Labs, we exclusively utilise mushroom-sourced Beta-D-Glucans for these reasons. There are two key attributes that are particularly noteworthy about mushroom beta-d-glucans:


Beta-D-glucans from mushrooms have a complex branching structure with β-(1,3) and β-(1,6) linkages. These is different from those found in grains, yeasts and algae. This branching pattern is believed to be responsible for their biological activity and potential health benefits.

The unique molecular structure of mushroom beta-d-glucans allows them to interact with specific receptors in the immune system and exert immunomodulatory effects.