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Real Mycelium

Targeted Cognitive Support

Pure Lion's Mane mycelium delivering a verified dose of Erinacine A. This is cognitive gold for aging and overloaded brains.

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Cognitive Performance

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Healthy Brain Aging

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Gut-Brain Health

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Each serving of Real Mycelium delivers a standardized dose of 5 mg of Erinacine A, a powerful new compound only found in the mycelium of Lion’s Mane (Hericium erinaceus). This neuroadaptogen is clinically studied to support the health of aging and overloaded brains. 

Real Mycelium is not a quick-hit nootropic or stimulant. It is designed for consistent use over time, helping support the brain’s natural pathways for cognitive function, resilience, and long-term health.

Benefits include:

  • Supports mental clarity
  • Supports healthy brain aging
  • Supports BDNF activity
  • Supports gut-brain health
  • Supports auditory function

Take 2 capsules daily, or as advised by your healthcare provider.

Real Mushrooms® products are always:

  • Verified for active compounds (beta-glucans, hericenones)
  • Free of grains, starches, or mycelium fermented grain
  • Third-party tested for safety, purity, and potency
  • Non-GMO, gluten-free, vegan
  • Produced in a GMP-certified, NSF-audited facility

This is the Real Mushrooms® Guarantee: No shortcuts. No fillers. Just real mushrooms.

Trusted by 94,000+ 5-star reviews

Meet Erinacine A.

Targeted Cognitive Support

Pure Lion's Mane mycelium delivering a verified dose of Erinacine A. This is cognitive gold for aging and overloaded brains.

How Real Mycelium is Made

Mycelium Culture

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A carefully selected Lion's Mane (Hericium erinaceus) mycelium culture is used as the starting material.

Liquid Fermentation

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The mycelium is cultivated in a controlled, nutrient-rich liquid environment, where it can grow without a grain substrate.

Harvest & Freeze-Dry

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Once fully grown, the mycelium is separated from the liquid, then freeze-dried and milled into a fine powder.

Test & Standardize

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Each batch is tested and standardized to deliver 5 mg of Erinacine A per serving for consistent potency.

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Real Mycelium is the Real Deal.

Hear why practitioners are excited about Real Mycelium and its targeted support for cognitive function, mental processing speed, and healthy brain aging.

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I've been a Real Mushrooms fan for years, but they have seriously exceeded expectations with their new product, Real Mycelium.

The difference in mental clarity and cognition was dramatic after taking it for just a few days.It’s a grain-free mycelium product that contains the purest form of Erinacine A – which is what makes this mushroom product so unique. I will definitely be adding Real Mycelium to every protocol aimed at improving cognition, focus, and mental clarity.

Ronda Nelson

Functional Medicine Practitioner

Finally, a legitimate Lion's Mane mycelial product that actually contains a pharmacological dose of Erinacines! After examining the analytical chemistry of the mycelial fermented grain products and finding little to none (yes, none!) of the neurologically active Erinacines, I am pleased to have a product that I can use clinically.

Dr. Kevin Spelman

PhD, MCPP, NAMA-CAP

As an integrative gastroenterologist, I have incorporated Lion’s Mane mushroom into my practice as an adjunct for selected patients to support regular gastric transit time. Although human clinical data are limited, its potential neurotrophic effects and support of autonomic and enteric nervous system function make it a promising option in carefully chosen cases. I am encouraged by the newly available pure Lion’s Mane mycelium as an option for my patients.

Dr. Bradley Trope

MD, Integrative Gastroenterologist

Why Real Mycelium?
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100% Pure Mycelium

No grain. No starch. No fillers.

Real Mycelium is our answer to what a quality mycelium product should be. We've waited 10 years for the right innovation to make a grain-free Lion's Mane mycelium product possible.

And we’ve done it how we always do, without any grain, starch or fillers. Just pure quality, backed by science.

Erinacine A Is Cognitive Gold

Erinacine A is a targeted neuro-adaptogen clinically studied to support cognitive decline and brains under heavy cognitive load.

This powerful diterpenoid is capable of crossing the blood-brain barrier and can only be found in the mycelium of Lion’s Mane (Hericium erinaceus).

Real Mycelium is the only mycelium product delivering a standardized amount of Erinacine A in every dose.

Real Mycelium

Frequently Asked Questions

Lion's Mane mushroom is the visible fruiting body, the reproductive structure traditionally eaten as food. Mycelium is the main body of the fungus, made up of a network of microscopic threads called hyphae. The mushroom and mycelium are different parts of the same organism and contain different compounds, which is why they may support different aspects of brain and whole-body wellness.

A standardized supplement tells you what active compound you're getting and how much is in each serving. Real Mycelium is standardized to deliver 5mg of Erinacine A per serving, so you know exactly what's in each dose rather than relying on the words "Lion's Mane" or "mycelium" alone.

No. Real Mycelium is made from pure liquid culture mycelium that is separated from its growing medium and freeze-dried. It is not mycelium-on-grain, which is often made by growing mycelium on rice or oats and drying the whole grain-based material together.

Erinacine A is a naturally occurring compound found in Lion’s Mane mycelium. It is studied for its role in supporting neurotrophic activity, including healthy BDNF activity, which is involved in brain cell communication, neuroplasticity, and cognitive resilience over time.

Not in the typical fast-acting sense. Erinacine A is not positioned as a stimulant, study aid, or same-day focus booster. It is better understood as targeted support for cognitive resilience that works gradually with consistent daily use. Think in terms of weeks and months, rather than days.

Not better, different. Lion’s Mane mushroom provides whole-mushroom, system-level support, while standardized Lion’s Mane mycelium provides targeted support through Erinacine A. They work on different layers and can be used as complementary strategies.

Because not all Lion’s Mane mycelium products contain meaningful or consistent levels of Erinacine A. Standardization verifies the amount present in each serving and helps ensure the product aligns with the human clinical research, which used 5 mg of Erinacine A per day. Without standardization, there is no way to know how much Erinacine A a product actually contains.

Look for Erinacine A clearly listed on the Supplement Facts panel, Certificate of Analysis, or product label with a specific amount per serving. If a product only says “Lion’s Mane mycelium” without listing Erinacine A, there may be no clear way to know whether it contains a meaningful amount.

Take it whenever it fits best into your daily routine. Real Mycelium is not designed for an immediate “feel it now” effect, so consistency matters more than timing. Many people take it in the morning or with their first meal.

Real Mycelium is designed for daily use and works best with consistency over time. As with any supplement, speak with a qualified healthcare practitioner before use if you are pregnant, nursing, taking medication, or managing a medical condition.

Real Mycelium is standardized to deliver a defined amount of Erinacine A at 5 mg per serving, with testing performed by a verified, accredited third-party lab. This helps ensure the key active compound is present in a measured, consistent amount from serving to serving.

No. Lion’s Mane mycelium can be produced in different ways. Many products are made from mycelium grown on rice, oats, or other grains (mycelium fermented grain), where the final product may contain a significant amount of grain or starch. Real Mycelium is different. It is pure Lion’s Mane mycelium grown in liquid culture, separated from its growing medium, and contains no grain or starch fillers.

No. Erinacine A production depends heavily on the cultivation conditions and nutrients used to grow the mycelium. Some growing methods produce very little Erinacine A, while others are specifically optimized to increase its production.
Research and commercial testing show that some mycelium fermented grain products contain very low levels, or even no detectable Erinacine A. Real Mycelium is grown in a specialized liquid culture designed to support Erinacine A production and is standardized to deliver 5 mg of Erinacine A per serving, the same amount used in the human clinical research.

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Real Mycelium is the Real Deal

Exclusively from Real Mushrooms®

Erinacine A is a targeted, clinically studied compound capable of crossing the blood-brain barrier, and it can only be found in Lion's Mane mycelium, not the mushroom.

  • 100% pure mycelium, no grain, no starch, no fillers
  • Standardized to a verified 5mg Erinacine A dose
  • Third-party tested for quality and potency
  • Backed by cutting-edge clinical research
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