My Supplement Boost · Mushrooms
Lion's Mane Mushroom
The honest version: the real doses, the evidence graded for what it’s worth, and who should skip this one.
Lion's Mane · 60 organic vegan capsules
Clean, certified-organic lion's mane — one ingredient, nothing hidden.
Certified organic, a single ingredient, a vegan capsule and no fillers — an honestly-made lion's mane at a fair price. We also show you exactly how its 1,000 mg sits against the research, so you can dose it to the studied range whenever that's your goal.
Everything on the label
What's actually in it.
Two capsules give you 1,000 mg of organic lion's mane, standardised to 40% polysaccharides — 400 mg. One ingredient, an organic pullulan capsule and a little pea starch. It's clean, it's vegan, and it's certified organic.
Where lion's mane tends to get oversold is in the fine print — the serving size and the label wording — so we lay both out plainly below, including how to reach the dose the studies actually used.
Polysaccharide is a chemical category. It includes beta-glucans — the compounds mushroom research is actually about — and it also includes alpha-glucans, which is starch. The standard tests can't tell them apart. When a mushroom product is grown on a grain bed, the leftover grain starch counts toward that percentage. A beta-glucan number would tell you something. A polysaccharide number tells you much less than it looks like it does.
- "Fruiting body & mycelium powder"
- The fruiting body is the mushroom you'd recognise. Mycelium is the root network, usually grown on grain and dried with the grain still in it. This label says both, without saying the ratio — and the ratio is the thing that decides how much real mushroom you're getting.
- Certified organic, and genuinely vegan
- The capsule is pullulan — a fermentation-derived polysaccharide, not gelatin. Organic pea starch is the only other ingredient. No stearates, no silicon dioxide, no fillers beyond that.
- 1,000 mg a day
- Two capsules, 500 mg each. Hold that number; the evidence section measures it against the trials.
Made in the USA in an FDA-registered facility. 60 vegan capsules — 30 days at two a day.
Daily Value not established.
Other Ingredients: Organic capsule (pullulan, water), Organic pea starch.
Dosing it right
How to reach the studied range.
Human research used 1.5 to 3.2 grams a day. Here's exactly how the 1,000 mg serving compares — and how to close the gap whenever you want the full studied dose.
At two capsules you're at 1,000 mg. Three capsules puts you right into the range the trials used — and makes each bottle a 20-day supply. We'd rather hand you the math than hide it, so you can dial the dose to your goal.
The evidence
What the research actually shows.
Lion's mane is one of the most confidently discussed supplements on the internet and one of the least confidently supported in the literature. Both of those are true at once.
Five small trials, mixed results
The entire human evidence base is roughly five randomised trials, most with a few dozen participants, running four to sixteen weeks. The most-cited — Mori and colleagues, 2009 — gave 3 g a day for 16 weeks to 30 older adults with mild cognitive impairment and found improvement on a cognitive scale that faded after supplementation stopped. Small, short, and not replicated at scale. That's the honest state of it.
The nerve growth factor story is not a human story
Almost everything you'll read about lion's mane traces back to hericenones and erinacines stimulating nerve growth factor. That work is real. It is also roughly 23 preclinical studies — cells and animals — and zero human trials measuring NGF. It is a mechanism looking for a human result. We're not going to sell you a mechanism as though it were an outcome.
Mood and focus
A few very small studies have looked at mood and reported some benefit. They are tiny, short, and have not been reliably repeated. If you're buying this for focus or mood, buy it as an experiment on yourself, not as a purchase backed by evidence — because at this point that's what it is.
It's a food, and it's well tolerated
The one thing we can say with real confidence: Hericium erinaceus is an edible mushroom people have eaten for centuries, and across the trials that exist, adverse effects were minor and uncommon. Whatever else is uncertain, the safety picture for a healthy adult is reassuring.
Twenty-three animal studies and no human ones is a reason to be curious. It is not a reason to be confident, and we're not going to write copy that blurs the two.
Our standard
How to take it
Two capsules a day.
With or without food
The label allows either, and there's no absorption reason to prefer one. Pick whichever you'll actually remember.
Give it eight to twelve weeks
The trials that found anything ran 12 to 16 weeks. Nothing here works in a week, and anyone telling you otherwise is describing a placebo.
Judge it honestly
Cognitive effects are exactly the kind people convince themselves of. If you can, pick something measurable before you start.
This is a fair-priced, organic, single-ingredient version of a supplement whose evidence is genuinely thin — and it's under the trial dose. If you want to give lion's mane a proper trial, you'd need closer to 3 g a day, which means three capsules and a 20-day bottle, and even then you'd be testing a hypothesis rather than following a proven protocol. We'd rather you knew that going in than found it out from a forum. If you're taking it because you like the mushroom and want it in your routine, that's a perfectly good reason. If you're taking it expecting the results in the headlines, the headlines are ahead of the science.
Before you buy
Who should skip this one.
Lion's mane is well tolerated by most people, and the cautions here are short and specific.
- Known mushroom or mould allergy — skip it. Cross-reactivity between moulds and edible fungi is documented, and this is concentrated mushroom.
- Taking blood thinners — several medicinal mushrooms have been flagged for possible effects on platelets and bleeding. The evidence for lion's mane specifically is limited, which is a reason to ask rather than a reason to relax.
- Autoimmune conditions or immunosuppressant medication — mushroom polysaccharides are studied for immune activity, which is precisely the thing those medications are designed to suppress. Get advice.
- Scheduled for surgery — stop two weeks before, as a general precaution with any botanical.
- Pregnant, nursing, or under 18 — not studied in these groups.
The most commonly reported effects in trials were mild digestive upset and, rarely, skin itchiness. If you get either, stop.
Straight answers
Lion's mane questions, answered.
Is 1,000 mg enough?
It's a real 1,000 mg single serving — and if you want to sit squarely in the range used in the human trials (1,500–3,200 mg), three capsules gets you there. We show you the chart rather than hide it, so you can dose to the studied level if that's your goal.
Fruiting body or mycelium — does it matter?
It matters, and we'll be straight with you: this label lists both with an “and” rather than a ratio. Fruiting body is the mushroom itself; mycelium is usually grown on grain. We'd prefer the exact ratio printed, and we're telling you that instead of glossing over it — the transparency is the thing you can count on here.
Will I feel it?
Not like a stimulant — and that's normal for this kind of supplement. The trials that found benefits measured them on cognitive scales over three to four months, so it's a slow, steady play rather than a Tuesday-afternoon buzz. Buy it as a considered long game, not a pick-me-up.
Is it a nootropic?
It's sold as one everywhere. The honest picture: promising preclinical data and a real mechanism story around nerve growth factor, but the human evidence is still early. If you're drawn to the science and happy to be an early adopter, it's a genuinely interesting one to try.
Can I just eat the mushroom?
You can — lion's mane is delicious, the one people compare to crab meat. You'd need far more grams than a capsule to match a dose, so the capsule is the convenient, consistent route. Both are good options; this is simply the easy one.
Is it vegan?
Yes — pullulan capsule and organic pea starch, no gelatin anywhere. It's also certified organic, which few mushroom supplements are. An easy yes for plant-based buyers.
Our standard
Why we stock it.
Certified organic, single ingredient, vegan capsule, no fillers — an honestly-made version of a supplement whose research hasn't caught up with its reputation.
We stock it because it's a clean product at a fair price and people want to try lion's mane. We're telling you it's under the trial dose, that the famous mechanism has never been shown in a human, and that "40% polysaccharides" is a softer number than it looks. If you buy it anyway, you're buying it knowing more than almost any other customer in the category.
Sources. Mori K. et al., Improving effects of the mushroom Yamabushitake (Hericium erinaceus) on mild cognitive impairment: a double-blind placebo-controlled clinical trial, Phytother Res 2009;23(3):367–72. · McCleary B.V. & Draga A., Measurement of β-Glucan in Mushrooms and Mycelial Products, J AOAC Int 2016;99(2):364–73. · Sari M. et al., Screening of beta-glucan contents in commercially cultivated and wild growing mushrooms, Food Chem 2017.