Reishi (Ganoderma lucidum)

Calm MindDeep SleepHormone Balance
Reishi mushroom on split black-white background with text: The Calm-Keeper Mushroom (Ganoderma lucidum)
Size: 90 Capsules
In stock
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Trusted by Thousands

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.

Better Sleep!


"I’ve noticed a positive shift in my sleep. It’s incredible how quickly I felt the difference after 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.

The Best Reishi I Have Found!


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

Shene L.

Really recommend


"I’ve been taking these for a few months now. Mainly due to memory loss and brain fog after canc** treatment. My brain is so much lighter and clearer."

Charlotte W.

The quality stands out immediately


"After just a few weeks, the swelling in my joints has noticeably reduced, and the puffiness in my fingers is much less."

Karen C.

Best for histamine intolerance


"I've tried to many expensive supplements over the last 9 months and none of them really worked, but a few weeks with Reishi and I'm having great results."

Helen J.

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Antioxi Reishi mushroom powder and capsules on soft pink background with black pouch and spoon.

Purity & Potency Snapshot

We obsess over the details so you don’t have to. From harvest to extraction, every step is optimized to preserve natural potency and purity.

Scientific Name

Ganoderma lucidum

Active Compounds

Verified 61.7% Beta D-Glucans

Mushroom Part Used

100% Fruiting Body

Grown On (Substrate)

Natural Wood Logs

Extraction Method

Dual Extraction (Hot Water & Alcohol)

Reishi mushroom shown in detail beneath its bold, textured title on a minimal white background.

No fluff. Just proof.

Lab Reports

Every pouch is tested, verified, and backed by real numbers. Because when it comes to your health, transparency isn’t optional — it’s essential.

We don’t expect trust — we earn it. See the full lab reports for yourself.
View Reports

Meet Our Science Team

Medical Advisor – Safety & Longevity

Dedicated to the science of longevity, Dr. Claudia Mendonça combines clinical insight with a preventative, patient-focused approach, helping people live healthier, longer, and more empowered lives.

Nutrition Science Advisor

Rebecca Taylor, is a Registered Nutritionist with a first-class MSc in Personalised Nutrition and a deep commitment to science-backed wellness.

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

Clean Supplements

Every batch tested for heavy metals, microbials, and pesticides- verified by independent labs.

View Safety Info

POTENT

Backed by Science

Independently verified by Eurofins for exceptional potency and premium quality extracts.

See How We Test

PERSONAL

Built on trust

7-day access to our team, plus free 1:1 talks with our co-founder to help you find the perfect product.

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FAQs

average rating 4.8 out of 5
Based on 134 reviews
  • 5 Stars
    118 Reviews
  • 4 Stars
    10 Reviews
  • 3 Stars
    5 Reviews
  • 2 Stars
    1 Review
  • 1 Star
    0 Reviews
96% of reviewers would recommend this product to a friend
Rate the product's effectiveness.
Rated 1 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfied and 2 is Outstanding
Rate our transparency and testing.
Rated 1 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfied and 2 is Outstanding
Rate our customer service.
Rated 1 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfactory and 2 is Outstanding
Review posted
Reviewed by Azim K.
Verified Buyer
Age
25-34
Dose
2g
Health Goal
Sleep & Relaxation
How soon did you notice benefits?
Immediately
Rated 5 out of 5

Calming, helps with sleep

Great product that I have recommended to others. It really does help me relax and is really good and tested!

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I recommend this product
Rate the product's effectiveness.
Rated 2 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfied and 2 is Outstanding
Rate our transparency and testing.
Rated 2 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfied and 2 is Outstanding
Rate our customer service.
Rated 2 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfactory and 2 is Outstanding
Was this helpful?
Review posted
Reviewed by Julia H.
Verified Buyer
Age
35-44
Dose
1g
Health Goal
Stress & Mood
How soon did you notice benefits?
Within 7 Days
Rated 4 out of 5

Good start but not for everyone

Very quicky, I felt a calming effect throughout the day but after taking it for a week or two I had to take a break as it affected my mood. It didn't improve my sleep quality though.

I might try again at some point but everyone reacts differently to these things.

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I recommend this product
Rate the product's effectiveness.
Rated 0 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfied and 2 is Outstanding
Rate our transparency and testing.
Rated 0 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfied and 2 is Outstanding
Rate our customer service.
Rated 0 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfactory and 2 is Outstanding
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Review posted
Reviewed by Timothy B.
Verified Buyer
Age
55-64
Dose
1g
Health Goal
Sleep & Relaxation
How soon did you notice benefits?
Immediately
Rated 5 out of 5

All Powerful Reishi!

I take medicinal mushroom extracts as part of my supplement regimen. I had been using the same brand since I began, and they are great, but I read really good things about Antioxi, and how they operate, so I decided to give their Reishi a try. I must say that this Reishi is better than what I was using. So glad they can ship now from within the USA. Will definitely continue to use.

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I recommend this product
Rate the product's effectiveness.
Rated 2 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfied and 2 is Outstanding
Rate our transparency and testing.
Rated 2 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfied and 2 is Outstanding
Rate our customer service.
Rated 2 on a scale of minus 2 to 2, where minus 2 is Needs Improvement, 0 is Satisfactory and 2 is Outstanding
Was this helpful?

Antioxi

Thank you so much for sharing this, and for giving Antioxi a try, Timothy! 🌿

We’re thrilled to hear our Reishi has made such a strong impression and that you’ve noticed the difference in quality.

Launching our USA-based shipping has and will definitely help us serve our mushroom community better and faster, so we’re glad that made things easier for you too.

Here’s to continued balance and wellbeing with your new Reishi routine! 🍄✨