Lion's Mane, Explained

Lion's Mane: Fruiting Body vs Mycelium, and What You're Actually Paying For

Two very different things get sold under one name. Here is how to tell them apart

What the fruiting body and mycelium-on-grain actually are, why beta-glucan percentage matters more than the word "polysaccharides", and how to read a lion's mane label before you buy.

By , Founder, Alchemy Dose

Erwin founded Alchemy Dose to source functional mushroom extracts from the producers who make them best, wherever in the world that is, alongside wild mushrooms foraged in the Himalaya, and to formulate his own products from them. The aim is high-quality extracts, tested per batch, and honest products built on top of them. He writes about mushroom chemistry, how an extract is actually made, and how to read a certificate of analysis rather than a label.

Updated August 2026 8 min read What's in the jar

Two jars can carry the same two words, lion's mane, and hold almost nothing in common inside. One is an extract of the actual mushroom, the white spined fruiting body. The other is a powder grown in a bag on grain and milled with the grain still in it. They cost different amounts to make, they read very differently on a lab report, and they are both sold to you under the same name. The rest is how to tell them apart, and how to read a label so the choice is yours, not the seller's.

The two things sold as lion's mane

"Lion's mane" is a common name, not a promise about what is in the jar. Two different products are sold under it, and once you can name them the whole category gets simpler to shop.

The first is fruiting body extract. This is the mushroom itself, the part you would recognise, harvested and then extracted. The second is mycelium-on-grain, sometimes labelled "myceliated grain" or "full spectrum". This is the young thread-like stage of the fungus, grown through a block of grain and then dried and milled together with that grain.

Both are legally lion's mane, and neither is a fraud on its own. They are simply two raw materials, made in different ways and at different costs. The difference does not show up in the name on the front of the pack. It shows up on the lab report, and in the price.

 Fruiting body extractMycelium-on-grain
What it isThe mature mushroom, the white spined cushionThe thread-like network, milled together with the grain it grew on
How it is grownFruited on wood or sawdust, then harvested as the mushroomGrown through a bag of sterilised grain, never fully fruited
What ends up in the powderMushroom only, no grainMycelium and leftover grain, together
Starch contentLowHigh, carried in from the grain
Beta-glucan readingHigher, from the mushroomLower, diluted by grain
Words on the label"Fruiting body", an extract ratio, a beta-glucan %"Mycelium", "full spectrum", a "polysaccharides" %
Cost to produceHigherLower
A whole white lion's mane fruiting body placed beside a pale block of mycelium grown through grain
Left, the fruiting body, the mushroom itself. Right, mycelium grown through grain, milled with the grain still in it.

What the fruiting body is

The fruiting body is the mushroom in the photographs: Hericium erinaceus, a white rounded cushion with soft, fleshy spines that hang down like icicles. It grows on hardwood, and it is the part of the fungus that would, in the wild, release spores to make the next generation. When someone pictures lion's mane, this is what they picture.

Our extract uses the fruiting body only, with no grain in the jar. It is a dual extract, which means the mushroom is drawn out twice, once in hot water and once in alcohol, because some parts of the mushroom dissolve in water and others do not. The finished extract is standardised to an 8:1 ratio, so 8 kg of dried mushroom goes into every 1 kg of extract. In that extract, a third-party lab measured beta-glucans at 26.20% and total polysaccharides at 30.22%.

You can see the current batch figures and pricing on the Lion's Mane Extract page.

Our lion's mane at a glance
Species
Hericium erinaceus
Part used
Fruiting body only, no grain
Extraction
Dual extract, hot water and alcohol
Extract ratio
8:1 (8 kg dried mushroom to 1 kg extract)
Beta-glucans
26.20%, third-party measured
Polysaccharides
30.22%
Testing
Third-party lab, per batch
Marketed by
Nutradose Private Limited

What mycelium-on-grain is

Mycelium is the fungus before it becomes a mushroom. It is the fine, root-like web of threads that spreads through wood or soil, gathering what it needs, until conditions are right to push up a fruiting body. It is real lion's mane tissue, and there is nothing false about it.

The catch is how it is usually grown for powder. A producer sterilises a bag of grain, often oats, rice, or sorghum, and lets the mycelium spread all the way through it. Separating the fine threads from the grain afterwards is slow and costly, so in practice the whole block, mycelium and grain together, is dried and milled into a single powder. That is faster and cheaper than growing, harvesting, and extracting the actual mushroom.

What you end up with is a powder that is part fungus and part grain. The grain brings its own carbohydrate, mostly starch, along for the ride. This is not unsafe, and it is not a trick in itself. What matters is that a good share of a mycelium-on-grain powder is grain, not mushroom. That one fact drives the numbers on the label.

Beta-glucans vs polysaccharides

Most of the confusion around lion's mane, and most of the loose marketing, lives right here.

A polysaccharide is just a long chain of sugar molecules. That is a broad group. Beta-glucans, the compounds people are actually looking for when they buy a mushroom, are polysaccharides. But so is starch, the main carbohydrate in grain. So is the glycogen in animal tissue. The single word "polysaccharides" covers all of them at once.

Now put that next to a mycelium-on-grain powder, which carries a lot of grain starch. If a label reports a big "polysaccharides" figure, that figure can quietly include the starch from the grain. A high polysaccharide number can be measuring leftover grain as much as it is measuring the mushroom. It looks impressive and it is easy to print.

The beta-glucan percentage is the harder, more honest marker, because it counts a compound that comes from the mushroom's own cell walls and not from grain starch. Our fruiting-body extract reads 26.20% beta-glucans against 30.22% total polysaccharides. Those two numbers sit close together, which is what you would expect when there is little starch padding the total. On a grain-grown powder, the gap between a high "polysaccharides" number and a low beta-glucan number is usually much wider.

The one number to ask for

A large "polysaccharides" figure is easy to print and easy to inflate, because grain starch is a polysaccharide too. The beta-glucan percentage is the figure that counts a compound from the mushroom rather than from the grain it may have grown on. If a seller shows you only "polysaccharides", the beta-glucan number is the next thing to ask for.

Hericenones and erinacines

Two names come up around lion's mane more than any others: hericenones and erinacines. They are two families of compounds that chemists have isolated from Hericium erinaceus and given those names. Hericenones were identified in the fruiting body of the mushroom.

We are naming them here for one reason only, so that you recognise the words when a label or an article puts them in front of you. That is the whole of it. We are not going to tell you what they do, because attaching an effect to a compound name is exactly the line this page will not cross, and it is a line a great deal of lion's mane marketing steps over without a second thought. A compound being present in a mushroom, and that compound doing something for a person, are two very different statements, and only the first one belongs on a label.

If you want the chemistry of these compounds written the same careful way, we cover it in our note on hericenones in Hericium erinaceus.

How to read a lion's mane label

Once you know the two raw materials and the two kinds of number, a label reads quickly. Four questions do most of the work.

Does it say "fruiting body"? If the front says only "lion's mane", or uses "mycelial biomass" or "full spectrum" without naming the fruiting body, it may well be mycelium-on-grain. The honest fruiting-body products tend to say so plainly.

Is there an extract ratio? A ratio such as 8:1 tells you the mushroom has been extracted and standardised. A product sold as an "extract" with no ratio stated anywhere is worth a second look.

Is there a beta-glucan percentage, not just "polysaccharides"? As above, the beta-glucan figure is the specific one. A label that shows a big polysaccharide number but no beta-glucan number has left out the more telling half.

Is there a third-party certificate of analysis? A number a lab will put its name to, per batch, is worth more than a number printed on a pouch. If a certificate is offered for each batch, that is a good sign.

Close-up of a lion's mane supplement label showing the fruiting body wording, the extract ratio and the beta-glucan percentage
The four things worth finding on a label: the part used, the extract ratio, the beta-glucan percentage, and a batch certificate.
What a good label shows
  • The species, Hericium erinaceus
  • The words "fruiting body"
  • An extract ratio, such as 8:1
  • A measured beta-glucan percentage
  • A third-party certificate of analysis per batch
Red flags to notice
  • Only a "polysaccharides %", with no beta-glucan figure
  • "Mycelium", "myceliated grain" or "full spectrum" and no fruiting body named
  • No extract ratio on something sold as an extract
  • Big round numbers with no lab behind them
  • No certificate, or "results on file" you cannot actually see

If certificates of analysis and extract ratios are new to you, our complete guide to functional mushrooms in India walks through them across every species we carry.

Which one to buy

The right choice depends on what you want the mushroom for, and there are really two honest answers.

If you want the mushroom in a measured, testable form, choose a fruiting-body extract. That is what our Lion's Mane Extract is: fruiting body only, dual-extracted at 8:1, with beta-glucans measured at 26.20% and a certificate for every batch. You are buying the mushroom, and a number you can check, rather than the grain it might have been grown on.

If you would rather cook, there is a simpler option. Lion's mane is a genuine culinary mushroom, with a soft texture that many people compare to crab or scallop once it is pan-fried. Our Dried Lion's Mane is the whole mushroom, to slice and cook, with no extraction involved. It is a food, sold as a food.

You will notice mycelium-on-grain is not on our shelf, and now you know the reason. We would rather sell you the mushroom than the grain it could have grown on. You can see the full range on the lion's mane collection page.

Frequently Asked Questions

Fruiting body vs mycelium lion's mane, which is better?

For most buyers who want the mushroom itself, a fruiting-body extract is the clearer choice, because it is the mature mushroom without the grain that mycelium-on-grain carries, and its beta-glucan reading comes from the fungus rather than from leftover starch. Mycelium-on-grain is a real product and is usually cheaper, but a large share of the powder is the grain it grew on. To compare the two fairly, look at the beta-glucan percentage and whether the label names the fruiting body.

What beta-glucan percentage should lion's mane have?

There is no single legal minimum, so ask for the number and compare it. A fruiting-body extract will usually report a beta-glucan figure well above what a grain-grown mycelium powder can, because grain dilutes it. Our fruiting-body extract measures beta-glucans at 26.20%, alongside total polysaccharides at 30.22%. What matters is that a beta-glucan figure is stated and backed by a third-party lab, not just a large "polysaccharides" number.

Is mycelium lion's mane bad?

No, mycelium-on-grain is not bad or unsafe, and it is genuinely part of the fungus. It is simply a different raw material from the fruiting body. Because the mycelium is dried and milled together with the grain it grew on, the powder carries starch, and that can make a "polysaccharides" number look high while the beta-glucan figure stays low. It is not a scam. You just want to know that is what you are buying, and pay for it accordingly.

What are hericenones and erinacines?

They are two families of compounds that chemists have isolated from the lion's mane fungus, Hericium erinaceus, and named. Hericenones were identified in the fruiting body. We name them here only as compounds found in the mushroom. We do not attach any function or benefit to them, and a label that does is telling you more than the compound names on their own can carry.

Lion's mane powder vs extract, what is the difference?

"Powder" can mean two different things, which is where the muddle starts. Plain dried-and-milled mushroom is a powder, and a food you can cook with. An extract is that mushroom drawn out and standardised, usually shown as a ratio like 8:1, which means 8 kg of dried mushroom goes into 1 kg of extract, and it is set to a measured beta-glucan percentage. If you want a measured, testable amount, that is the extract. If you want to cook, the dried mushroom is the simpler food.

Lion's mane, fruiting body only

A dual extract of the fruiting body at 8:1, with beta-glucans measured at 26.20% and a third-party certificate for every batch. No grain in the jar.

See the Lion's Mane Extract
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Lion's Mane Extract Dried Lion's Mane Lion's Mane Collection Functional Mushrooms Guide Hericium erinaceus fruiting body vs mycelium beta-glucans extract ratio certificate of analysis

NOT FOR MEDICINAL USE. The products described here are foods and are not intended to diagnose, treat, cure, or prevent any disease. They are not a substitute for a varied diet or for medical treatment. Follow the recommended usage level and do not exceed the recommended daily usage. If you are pregnant, breastfeeding, taking medication, or managing a health condition, consult a qualified healthcare practitioner before use. Marketed and sold by Nutradose Private Limited under FSSAI License No. 13326999000107.

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