The science

The actives are real.
The research is older than we are.

Lion’s mane and cordyceps aren’t trendy — they’re two of the most-studied functional mushrooms in modern literature, with hundreds of peer-reviewed papers between them.

We don’t invent claims. We cite them. Every active on our label is there because the research says it should be.

How it works

Three mechanisms,
in plain English.

01 · Neurogenesis
Lion’s Mane NGF

Hericenones and erinacines — compounds unique to lion’s mane fruiting bodies — cross the blood-brain barrier and stimulate Nerve Growth Factor: the signal your brain uses to build new neurons and reinforce existing synapses.

02 · Oxygen uptake
Cordyceps ATP

Cordycepin (3′-deoxyadenosine) is structurally similar to adenosine and has been studied for its role in cellular ATP production, the molecule cells use to store and move energy. The research base is still developing.

03 · Immune modulation
Beta-glucans Receptors

Beta-1,3/1,6-D-glucans bind to Dectin-1 and CR3 receptors on your immune cells, priming them without over-activating them. This is why mushroom extracts are called ‘adaptogenic’ — they regulate up OR down depending on what the body needs.

The receipts

Selected peer-reviewed
research.

2019✓ Peer-reviewed
Dietary Hericium erinaceus promotes structural and functional recovery of hippocampal neurons, with measurable improvements in memory and reductions in neuroinflammation.
Nutrients · PubMedPubMed
2023✓ Peer-reviewed
Lion’s Mane supplementation produced statistically significant improvements in cognitive performance on validated assessments in healthy adults.
Nutrients · PMCPubMed
2026✓ Peer-reviewed
Hericium erinaceus compounds stimulate adult neurogenesis — the growth of new neurons — through NGF-pathway activation.
Journal of Natural Medicines · PubMedPubMed
2017✓ Peer-reviewed
Cordyceps militaris improved physical performance markers in healthy adults after a three-week supplementation protocol.
J. of Dietary SupplementsPubMed
2010✓ Peer-reviewed
Cordyceps supplementation improved exercise performance and tolerance in healthy older adults, with no adverse events reported.
J. Alt. & Comp. MedicinePubMed

These statements have not been evaluated by the FDA. Our products are not intended to diagnose, treat, cure, or prevent any disease. Full citations and lab reports available on request.

Certificate of Analysis

Every batch.
Every time.

Report № 0000533 · Analysis 2025-11-22

Test Specification Standard Result
Lead (as Pb) ≤ 0.5 mg/kg GB 2762 Conform
Arsenic (as As) ≤ 0.5 mg/kg GB 2762 Conform
Loss on Drying ≤ 18.0 g/100g SB/T 10021 7.90
Reducing Sugars ≤ 0.5 g/100g SB/T 10021 0.32
Total Plate Count n=5 · m=10,000 CFU/g SB/T 10021 <10 across all
Yeast & Mold ≤ 50 CFU/g GB 4789.15 Conform
Coliforms n=5 · m=10 CFU/g SB/T 10021 <10 across all
Staph. aureus 0 / 25g GB 4789.10 Conform
Salmonella 0 / 25g GB 4789.4 Conform
Download full COA (PDF) ↗

Conclusion: complies with specification · Report dated 2025-11-25.

What to look for on a label

Fruiting body.
Not mycelium.

When you see “mushroom extract” on a supplement, it almost always means mycelium grown on grain — basically mushroom roots in sawdust — not the fruiting body you’d recognise as an actual mushroom.

The hericenones and erinacines that make Lion’s Mane worth taking are found in fruiting-body extract only. Cordycepin, the active molecule in Cordyceps, follows the same pattern.

Every Seren product is 100% fruiting-body extract.
Always has been. Always will be.

Our process

Dual-extracted.
Twice the actives.

01

Hot water.

Draws out the water-soluble beta-1,3/1,6-D-glucans that prime your immune receptors. This is the pass most brands stop at.

02

Food-grade ethanol.

Pulls the fat-soluble terpenes and sterols — including hericenones and cordycepin — that hot water leaves behind. Evaporated off before bottling.

20:1

The ratio.

Twenty kilos of fruiting body condensed into one kilo of finished extract. The potency lives in that ratio.

The mushroom dictionary

Two mushrooms,
two purposes.

Lion's Mane
20:1

For cognitive function, focus, and nerve support.

Cordyceps
10:1

For steady energy through a long day.

Our commitment

The Seren Standard.

Our gummies are jam-packed with mushrooms — up to 10× the amount in most other brands.

Every serving comes in at 20 calories or fewer. The Lion’s Mane Focus Gummies are only 15 calories per serving.

Each Lion’s Mane serving carries 500 mcg of Vitamin B12 (methylcobalamin) and 1000 IU of Vitamin D (cholecalciferol). B12 contributes to normal psychological function and helps reduce tiredness and fatigue; Vitamin D contributes to the normal function of the immune system. The Cordyceps gummies are mushroom extract only — see their ingredient list.

We use pectin — derived from the skin of citrus fruits — as our gelling agent.

We use natural flavours from real fruit to create the delicious, juicy taste — no artificial sweeteners or colours.

Ready to feel it?

The science is interesting. The experience is better. Two pouches, thirty-day money-back guarantee.