Hericenones vs Erinacines: Lion's Mane's Two Active Compounds, Explained
Lion's mane's two most-studied compound families live in different parts of the mushroom — and that single fact is why the fruiting-body vs mycelium debate matters. Here's what each does and where it comes from.
By The Lion's Mane Reviews Desk · 7 min · Updated 2026-06-14
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The short version: hericenones come mainly from the fruiting body (the actual mushroom), erinacines come mainly from the mycelium (the root-like network). Both are studied for their ability to stimulate Nerve Growth Factor (NGF) — but that work is largely preclinical (lab and animal), not proven human outcomes.
Understanding the split is the single most useful thing for a buyer, because it explains why "fruiting body" and "mycelium" aren't just marketing words — they point to genuinely different compounds.
The short version
- Hericenones concentrate in the FRUITING BODY (the mushroom) — alongside the beta-glucans most extracts are standardized on.
- Erinacines concentrate in the MYCELIUM (the root network) — which is usually grown on grain, so most mycelium products are grain-diluted.
- Both are studied for stimulating NGF in lab and animal models — promising preclinical science, NOT a proven human benefit.
- This is why a few premium products (e.g. Oriveda) deliberately pair a fruiting-body extract with a separate, pure (grain-free) mycelium extract.
- For most buyers, a verified fruiting-body extract with a stated beta-glucan % is the sensible default; erinacine A is the connoisseur's add-on.
| Hericenones | Erinacines | |
|---|---|---|
| Found in | Fruiting body (the mushroom) | Mycelium (root network) |
| Studied for | NGF stimulation (preclinical) | NGF stimulation, incl. erinacine A (preclinical) |
| How to get it | Real fruiting-body extract | Pure, grain-free mycelium extract |
| Common pitfall | Low-grade whole-mushroom powder | Grain-grown mycelium (mostly starch) |
Hericenones vs erinacines at a glance.
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Question 1 of 6
First things first — what do you want lion's mane to do for you?
What are hericenones?
Hericenones are aromatic compounds found mainly in the fruiting body of lion's mane. In laboratory studies they've been shown to stimulate the synthesis of Nerve Growth Factor (NGF), a protein involved in the growth and maintenance of neurons. That's the mechanism most people are picturing when they take lion's mane for "brain" reasons.
What are erinacines?
Erinacines are a different compound family that concentrates in the mycelium — the thread-like network the mushroom grows from. Erinacine A in particular is studied (again, mostly in animal models) as a potent NGF stimulator that may cross the blood-brain barrier more readily than hericenones.
The catch: commercial mycelium is almost always grown on a grain substrate and dried with that grain, so a typical "mycelium" supplement is heavily diluted with starch and low in actual actives. Getting meaningful erinacines requires a purpose-grown, grain-free mycelium extract that discloses its erinacine A content — which is rare and premium.
Why this decides what you should buy
Put the two together and the sourcing debate resolves cleanly: fruiting body for hericenones + beta-glucans; dedicated pure mycelium for erinacines; and mycelium-on-grain as your whole supplement is the thing to avoid. Most people are well served by a verified fruiting-body extract. If you specifically want erinacine A on top, look for a dual product that pairs fruiting body with a standardized, grain-free mycelium extract (Oriveda is the clearest example). As a dietary supplement, lion's mane has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease.
Key terms
- NGF
- Nerve Growth Factor — a protein supporting neuron growth/maintenance; the pathway both compounds are studied on (preclinically).
- Hericenones
- NGF-stimulating compounds concentrated in the fruiting body of lion's mane.
- Erinacines
- NGF-stimulating compounds (incl. erinacine A) concentrated in the mycelium.
- Mycelium-on-grain
- Mycelium grown on and dried with a grain substrate — usually starch-diluted and low in actives.
Questions, answered
Are hericenones or erinacines better?
They're complementary, not competitors — both are studied for NGF, just from different parts of the mushroom. For most buyers, fruiting-body hericenones (with verified beta-glucans) are the practical default; erinacine A from pure mycelium is an advanced add-on.
Does fruiting body contain erinacines?
Erinacines concentrate in the mycelium, not the fruiting body, so a fruiting-body-only product is chosen mainly for hericenones and beta-glucans. To target erinacines you need a dedicated, grain-free mycelium extract that discloses erinacine A.
Is the NGF effect proven in humans?
No. The hericenone/erinacine NGF research is largely from lab and animal studies. Human trials of lion's mane are small and short (e.g. Mori 2009, 30 adults, 16 weeks) and don't directly prove the NGF mechanism in people. It's promising early science, not an established outcome.
Which products give me both?
A dual extract that pairs a fruiting-body extract with a separately produced pure mycelium extract — Oriveda is the clearest example, disclosing both beta-glucans and a standardized erinacine A figure.
Is lion's mane safe to take for this?
Lion's mane is an edible mushroom and generally well-tolerated; the main caution is mushroom allergy, and anyone pregnant, breastfeeding, or on medication should check with a clinician. This isn't medical advice, and these statements haven't been evaluated by the FDA.