Hericium erinaceus

ErinaPrime

Standardized Lion's Mane mycelium with 1% (10 mg/g) Erinacine A. Grown in liquid culture, then freeze-dried.

No grain. No starch. No filler. Just 100% pure mycelium.

Lion's Mane mycelium close-up
Hericium erinaceus

Standardized Lion's Mane Mycelium

ErinaPrime™ is 100% Lion's Mane mycelium, freeze-dried into a powder and standardized to 1% Erinacine A. Erinacine A is a compound that only develops in the mycelium of Lion's Mane. It is not present in the mushroom. The powder contains no grain substrate, no added starch, and no fillers.

Erinacine A
(10 mg/g) guaranteed
1%
1% Erinacine A 100% Pure Mycelium Third-Party Tested Clinically Studied
ErinaPrime powder and packaging

No Grain.No Starch.No Filler.

U.S. Grown lion's mane mycelium fermented grain is more grain than mycelium.

The ingredient at a glance

Three things that make ErinaPrime different.

If you've evaluated Lion's Mane mycelium ingredients before, these are the points where ErinaPrime™ diverges from mycelium fermented grain.

01 / COMPOSITION

100% Mycelium.

ErinaPrime™ is freeze-dried Lion's Mane mycelium. The mycelium is grown in liquid culture and separated from the substrate before drying, so the finished powder has no grain, no starch, and no carrier material in it.

For comparison: most "Lion's Mane mycelium" on the market is mycelium fermented grain which is more grain than mycelium.
02 / ACTIVE COMPOUNDS

1% Erinacine A in Every Batch.

Every batch is assayed for Erinacine A and released at 1% (10 mg/g) or higher. Testing uses validated HPLC methods from accredited third-party labs.

Most mycelium fermented grain are not tested for Erinacine A and contain almost none.
03 / COST PER ACTIVE

Pay for the Active, not the Grain

Mycelium fermented grain is inexpensive because most of it is grain. ErinaPrime™ delivers cost effective options for Erinacine A delivery.

Lower active concentration means a much larger dose per recommended serving of Erinacine A.
Side by side

What "Lion's Mane mycelium" Actually Means in the Supply Chain.

The label looks the same. The material is not. Here's what shows up on a typical mycelium fermented grain spec sheet versus ErinaPrime™.

ErinaPrime™

100% Mycelium

  • Composition: 100% Lion's Mane mycelium. No grain, no starch, no fillers. Just 100% mycelium.
  • Growth Method: submerged liquid fermentation. Mycelium is harvested from the liquid and freeze-dried as pure mycelium.
  • Erinacine A Content: 1% (10 mg/g) verified per batch. Declared on the specification sheet and on the COA.
  • Pricing: tied to active concentration. Cost per effective dose of Erinacine A is affordable.
U.S. Grown

Mycelium Fermented Grain

  • Composition: More grain (oats, sorghum, or rice) than mycelium by weight. Mycelium colonizes the grain substrate; both are dried and milled together.
  • Growth Method: solid-state fermentation using a grain substrate (rice, oats, sorghum). No separation step.
  • Erinacine A Content: typically below the limit of detection on third-party assays. Not declared on specification sheet or labels.
  • Pricing: low per kilo. Cost per effective dose of Erinacine A is high or not definable.
Why erinacine A

A Compound that only Develops in the Mycelium.

Erinacine A is a diterpenoid from the cyathane family. The reason it's useful as a formulation target is that it only develops in the mycelium of Lion's Mane. Mushroom extracts do not contain it.

How it acts in the body

Erinacine A is small and lipophilic enough to cross the blood-brain barrier. In published research, it functions as a stimulator of NGF (nerve growth factor) and BDNF (brain-derived neurotrophic factor) signaling, two of the central pathways in neurogenesis and synaptic plasticity.

Crosses the blood-brain barrier Stimulates NGF Stimulates BDNF Active in studied neurogenesis pathways

The formulation math

The amount used in human structure-function studies is around 3 mg of Erinacine A. At 10 mg/g of Erinacine A in ErinaPrime™, an effective dose would start at 300mg.

Erinacine A Testing

ErinaPrime™ vs. Mycelium Fermented Grain
ErinaPrime
>10 mg/g
Mycelium Fermented Oats
~0.38 mg/g*
Mycelium Fermented Sorghum
~0.01 mg/g*
Mycelium Fermented Rice
trace / ND*

* Based on internal HPLC testing at Nammex.

Clinical research

Two Published Human Trials. More Underway.

The research below was conducted on ErinaPrime™, not on a different Lion's Mane preparation or on isolated Erinacine A.

Cognitive function

Human trial on cognitive endpoints

Peer-reviewed study published in 2024. Looked at cognitive endpoints in adults supplementing with standardized Lion's Mane mycelium with verified erinacine A.

Auditory function

Human trial on hearing support

Peer-reviewed study published in 2022. Investigated neural support for auditory function using standardized Lion's Mane mycelium with verified erinacine A.

Underway

Additional human trials in progress

Our manufacturing partner has additional human clinical work currently in progress on this same ingredient. Results will be made available as they're published.

50+
Years of Mushroom Growing Experience
Where ErinaPrime™ fits with Nammex

Different Product. Same Quality.

Nammex has been producing mushroom ingredients since 1989. Almost all of that history is in Certified Organic mushroom extracts from species like reishi, turkey tail, cordyceps, and lion's mane, with verified beta-glucan and measured secondary compounds.

 

ErinaPrime™ is the start of pure mycelium standardized to Erinacine A. Erinacine A only develops in the mycelium of Lion's Mane and is not present in the mushroom, so this is an important active we couldn't deliver from our existing extract line.

FAQ

Questions From You.

Still have questions? Ask us directly.

How is ErinaPrime™ different from other Lion's Mane mycelium products?

Most products labeled as Lion's Mane mycelium are mycelium fermented grain. The mycelium is grown on a sterile grain substrate (typically oats, sorghum, or rice) and then both the grain and mycelium are dried and milled together. By weight, the finished material is more grain than mycelium. Erinacine A content in mycelium fermented grain is typically low or below the limit of detection.

ErinaPrime™ is grown in a liquid substrate instead of grain. The mycelium is harvested from the liquid medium and dried as a separate material, so the finished powder is 100% mycelium and is released at 1% Erinacine A or higher.

Is ErinaPrime™ Certified Organic?

No. Not all the liquid substrate inputs are Certified Organic so ErinaPrime™ is unable to be USDA Certified Organic. It still has a clean pesticide report due to the controlled production environment.

How are you growing the mycelium if it's not on grain?

Submerged liquid fermentation. The mycelium is grown in sterile liquid media inside controlled fermentation vessels. The growth conditions are optimized for Erinacine A expression. After growth, the mycelium is separated from the liquid, freeze-dried at low temperature, and milled into a fine powder.

How do I verify the Erinacine A content?

Every batch ships with a Certificate of Analysis. The COA includes the measured Erinacine A content. The release threshold is 1% (10 mg/g) minimum. We recommend all brands verify their supplier COAs.

Why is it priced higher than typical mycelium ingredients?

Per kilo, ErinaPrime™ costs more than mycelium fermented grain as it is pure mycelium. Per milligram of erinacine A, it delivers clinical endpoints at a fraction of the cost.

Most mycelium fermented grain ingredients have trace or non-detectable Erinacine A, so on a per milligram of active basis the effective cost is high (and in some cases undefined because the compound isn't present in measurable quantity). The price of ErinaPrime™ also reflects the controlled cultivation process, batch-level analytical testing, and the funded clinical research program on the ingredient.

Is this a mushroom ingredient, or something else?

It's a mycelium ingredient. The mycelium is the vegetative body of the Lion's Mane organism (Hericium erinaceus). It is not a mushroom as a mushroom and mycelium are both distinct fungal parts of these unique organisms.

Erinacine A is a mycelium specific compound. That's why ErinaPrime™ is standardized on it.

Talk to our team and sample ErinaPrime today.

Request a sample, ask for the spec sheet and a representative COA, or schedule a call to discuss how ErinaPrime™ fits into your next formulation.