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
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

Certified organic to the strictest UK & EU standards. Safety and quality - guaranteed.

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POTENT

Backed by Science

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

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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 128 reviews
  • 5 Stars
    113 Reviews
  • 4 Stars
    9 Reviews
  • 3 Stars
    5 Reviews
  • 2 Stars
    1 Review
  • 1 Star
    0 Reviews
95% 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 David T.
Verified Buyer
Age
45-54
Dose
1g
Health Goal
Sleep & Relaxation
How soon did you notice benefits?
2 Weeks
Rated 5 out of 5

For me it's the perfect way to relax and feel more calm of an evening, and its become part my evening routine.

After being exceptionally pleased with the other three products I purchased from Antioxi (Lion's Mane, Turkey Tail, Cordyceps) I decided to give Reishi a try. I don't have any specific issues, but I read quite a lot on how Reishi can help with relaxing/calming the mind/mood and also aiding in a better sleep.

My routine of taking Reishi 99 percent of the time, is to take it in the evening around 8PM or thereabouts. I purchased the capsule form (as I did with the other three products I mentioned earlier). I feel a couple of hours after taking it, that I definitely feel more relaxed and calm, and also things that would perhaps otherwise annoy me or make me think about stuff too much are lessened. Not sure about the sleep (as I have no issues with sleep) but with medicinal mushrooms there has to be the room for improvement for that aspect with the person taking them.

And for these reasons I feel Reishi is working for me. After all, who would not want things to annoy them less or have less things on their mind, and also to feel more calmer and more relaxed.

I have got these on subscription (as I have with the other three products I mentioned earlier) and I will defintely be ordering some more.

I have had countless questions and queries during the period of time I have been purchasing from Antioxi, and the level of customer service I have received is absolutely exceptional, its off the charts, I cannot remember experiencing customer service on a level anywhere near the level…

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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 Joshua D.
Verified Reviewer
Age
35-44
Dose
2g
Health Goal
Sleep & Relaxation
How soon did you notice benefits?
1 Month
Rated 3 out of 5

Took longer to kick in than I hoped

I expected faster results but it took almost a month to feel anything still the packaging and support were excellent

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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
Was this helpful?

Antioxi

Thanks for the honest feedback, Joshua. You're spot on Reishi is definitely one of those adaptogens that builds gradually rather than hitting right away.

Review posted
Reviewed by Keith P.
Verified Reviewer
Age
18-24
Dose
1g
Health Goal
Sleep & Relaxation
How soon did you notice benefits?
I Haven’t Noticed Any Yet
Rated 3 out of 5

No big change in sleep yet

Been using it consistently but my sleep hasn’t shifted much maybe I need a higher dose or more time

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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
Was this helpful?

Antioxi

Thanks for the honest feedback, Keith.