Reishi

Rated 4.9 out of 5
Based on 73 reviews
Sale price£23.99
AllergiesImmunitySleep
Size: 90 capsules

WHAT THEY'RE SAYING

A packet of Antioxi Reishi mushroom supplements is displayed on a table with a few capsules dark red capsules of Reishi in front of the supplement pouch.

Reishi Mushrooms


I've been dealing with sleep issues for a while, but since starting Reishi capsules, I've noticed positive changes. It's remarkable how quickly I felt the difference, even with just one pack.

Simona F.

A close-up of a black pouch of Antioxi Reishi mushroom supplements, highlighting the product's origin from Zhejiang Province and the extraction from the fruiting body.

Amazing Reishi

Out of all the Reishi powders I have tried, this one is definitely the best. So dark and rich I love it!

Stracey P.

 A black packet of Antioxi Reishi mushroom supplements with a white label featuring an illustration of a Reishi mushroom and capsules.

Really Recommend

I've been using these for a few months now, primarily to support my cognitive function post-cancer treatment. I've noticed a significant improvement in clarity and mental sharpness. I would definitely suggest them to others.

Charlotte W.

A black pouch of Antioxi Reishi mushroom supplements with a sleek design featuring an illustration of Reishi mushrooms.

Best Sleep I've Had In Years


Mixing Reishi with cacao, agave, oat milk, and hot water makes for a delightful bedtime treat. While some studies suggest benefits for individuals with certain conditions, I've personally found it helpful for achieving a deeper sleep, which is fantastic considering my history of light sleeping. Antioxi provides excellent service with fast delivery.

Alice O.

A person wearing a Superman hoodie stirs a drink in a gray mug with a spoon, next to a packet of Antioxi Reishi mushroom supplements on a kitchen counter.

Great Stuff

I've been using Reishi in a tea 2 hours before bed for a few weeks now. Experiencing sleeping longer afterwards.

Daniel K.

A pouch of Antioxi Reishi mushroom supplements is displayed alongside whole Reishi mushrooms, with a hand holding a spoonful of Reishi powder over a black mug.

Discover More About Antioxi Reishi

Reishi thrives under the careful stewardship of generations of farmers in Zhejiang Province, where centuries-old wisdom informs its cultivation. Grown on specially selected logs, Reishi basks in the high humidity of 50-60%, receiving ample scattered light and oxygen essential for its growth.


The unique microclimate of the region provides the perfect environment for Reishi to flourish, ensuring optimal development of its potent beneficial compounds.

Our dual-extraction process meticulously harnesses Reishi's full potential, targeting a spectrum of beneficial compounds. Polysaccharides, including beta-glucan, are extracted via hot water, while triterpenes and germanium are isolated through ethanol extraction.


This methodical approach ensures the comprehensive utilisation of Reishi's beneficial compounds. By employing both extraction methods, yielding a scientifically refined and potent product.

Our dedication to purity is unwavering. We surpass industry standards, rigorously testing for contaminants to ensure our Reishi is pristine. Independent verification by esteemed labs guarantees not only quality but also absolute safety.


This rigorous testing and verification process is our assurance to customers that when they choose Antioxi Reishi, they're selecting a product of the highest quality and purity, backed by scientific rigour and integrity.

Lab reports

Tested. Proven. Trusted.

Beta-Glucan Content: 61.7%

Why This Matters:

  • Beta-D-glucans are crucial for boosting immune health and overall potency in mushroom supplements.
  • Antioxi sets a high beta-D-glucan threshold of 40%, and with 61.7%, this extract exceeds the standard, ensuring maximum effectiveness.
  • Most mushroom products on the market aren't tested for beta-D-glucans, leading to inconsistent potency. Antioxi ensures consistent high quality.

Alpha-Glucan Content: 2.88%

Why This Matters:

  • Alpha-glucans can indicate impurities or fillers. A low alpha-glucan content of 2.88% confirms this product's purity.
  • Grain-based mycelium products often have higher alpha-glucan levels, signaling lower quality. Antioxi's low levels show no fillers or grains, ensuring higher product integrity.

Heavy Metals

Report vs EU Maximum Levels:

  • Lead, Cadmium, Mercury: All detected levels are well below the EU’s maximum limits, ensuring safety from these toxic metals.
  • Arsenic: No specific EU limit, but the detected level is low and considered safe.

Why This Matters:

  • Mushrooms can absorb harmful metals like lead and mercury.
  • The EU has some of the strictest limits globally, ensuring consumer protection.
  • We meet and exceed these safety standards to guarantee pure, safe supplements.

Pesticides

  • Tests Conducted: Liquid Chromatography (LC) and Gas Chromatography (GC) screenings.
  • Results: Pesticide levels were below the limit of quantification (<LOQ). This indicates that no detectable pesticide residues were found in the product.

Why This Matters:

  • Mushrooms can absorb pesticides, posing potential health risks.
  • We perform the most comprehensive pesticide tests, exceeding basic requirements for safety.
  • Many companies conduct only limited tests, but we ensure thorough screening for guaranteed product safety.

Microbials

  • Total Plate Count: Less than 10,000 CFU/g—meets safety standards.
  • Yeast and Mold: Below 100 CFU/g—low risk of contamination.
  • E. Coli and Salmonella: Both negative—no harmful pathogens detected.

Why This Matters:

  • Mushrooms can harbor microbes from their natural environment, making thorough testing essential to ensure a safe, contaminant-free product.

Saccharomyces cerevisiae

Saccharomyces cerevisiae (Baker's Yeast) can artificially inflate beta-glucan levels, misleading consumers about supplement potency.

Two Forms Tested
:

  • Regular: DNA detectable, confirmed negative through Polymerase Chain Reaction (PCR).
  • Purified: DNA undetectable, confirmed negative through Microscopic Analysis.

Why This Matters:

  • Testing for both forms ensures that no yeast is present, maintaining the integrity and true potency of our mushroom extracts. Beware, some companies use Saccharomyces cerevisiae to falsely boost beta-glucan levels.
The Antioxi Logo. The circle "o" in Antioxi's logo symbolizes completeness and ongoing commitment to quality, while the underline signifies a strong foundation, emphasizing our rigorous scientific and ethical standards.

WE GIVE A SHIITAKE

SAFE

ORGANIC CERTIFIED

Certified organic under strict UK & EU standards, ensuring unmatched safety and quality.

POTENT

THIRD-PARTY VERIFIED

Independently tested by Eurofins for 100% pure and potent extracts, ensuring maximum efficacy.

PERSONAL

UNMATCHED CUSTOMER SERVICE

7-day access to our team & private consultations with our co-founder for personalized support.

FAQs