Do Lion's Mane gummies work?

Honest answer: no Lion's Mane product has an authorised UK health claim, and human trials on Lion's Mane are few, small and short. The permitted claims on most gummies come from added vitamins — B5 for mental performance, B12 for tiredness and fatigue. Treat any gummy as a food supplement, not a treatment.

What does 2,500mg or 5,000mg on a gummy label actually mean?

Usually a dry herb equivalent: a 10:1 extract where 250mg of extract is described as 2,500mg of mushroom. It is a legitimate way to describe concentration, but it is not the physical weight of extract in the gummy. Divide by the extract ratio to compare like for like.

Which Lion's Mane gummy has the least sugar?

From the labels we checked: Grass & Co. FOCUS MAX is zero sugar and Novomins is sugar-free, WeightWorld is low sugar, while Ankhway and Known Nutrition list glucose syrup or sugar among their first ingredients.

Where can I buy Grass & Co. FOCUS MAX gummies?

On Amazon UK, with batch lab reports published on our science page.

The comparison desk · Last updated 4 November 2026

Best Lion's Mane gummies UK: an honest label comparison

What are the best Lion's Mane gummies in the UK?

The short answer

Most UK Lion's Mane gummies headline a big number — 2,000mg, 2,500mg, 5,000mg — and most of those are dry herb equivalent figures from a 10:1 extract, not the physical extract weight. Read them as roughly a tenth in extract terms and the labels become comparable. Beyond dose, the real differences are sugar (some leading brands are glucose-syrup based, others are sugar-free), what else is in the formula, and whether batch testing is published. Grass & Co. FOCUS MAX states 5,000mg Lion's Mane dry herb equivalent per two gummies with zero sugar; WeightWorld is the budget pick at 2,000mg per gummy; Ankhway spreads about 2,500mg of extract across ten mushrooms rather than concentrating on Lion's Mane. No Lion's Mane gummy — ours included — has an authorised UK health claim for the mushroom itself; the permitted claims come from added vitamins.

FOCUS MAX | Lion's Mane Mushroom Gummies — High-strength Lion's Mane. No capsules. No water.

Lion's Mane gummies sold in the UK, label by label (checked November 2026)

Lion's Mane gummies sold in the UK, label by label (checked November 2026)
	Grass & Co. FOCUS MAX	Ankhway	Known Nutrition	Novomins	WeightWorld
Lion's Mane per serving	5,000mg dry herb equivalent (10:1) per 2 gummies	About 2,500mg total mushroom extract per 2 gummies, across 10 species (roughly 250mg each)	2,500mg per serving (10:1, fruiting body, over 30% polysaccharides)	2,500mg per 2-gummy serving	2,000mg per gummy (10:1), one a day
What the mg means	Dry herb equivalent — about 500mg extract	Stated as extract	Dry herb equivalent	Dry herb equivalent	Dry herb equivalent
Other actives	Ginseng 2,000mg dry herb equivalent, Vitamin B5 (100% RI), B12 (200% RI), D3 (120% RI), algae DHA	10-mushroom blend including Cordyceps, Reishi, Chaga	Niacin 4.8mg (30% NRV), Iodine 45µg (30% NRV)	Vitamins B6 and B12, Iodine	None added
Sugar	Zero sugar (maltitol, erythritol, steviol glycosides)	Sweetened — glucose syrup and sugar are the first ingredients	Contains glucose, sucrose and refined sugar	Sugar-free	Low sugar
Diet	Vegan Society registered; contains soy	Vegan, gluten free	Vegan	Vegan, halal, gluten free	Vegan, gluten free
Pack	60 gummies · 30 servings	30-day pack	Check pack	60 gummies · 30 servings	90 gummies · 90 servings
Price	See Amazon UK	£29.99 (around £23.99 on subscription)	£16.99 list price	Check current price	£12.99

The trade-offs

Grass & Co. FOCUS MAX

The highest stated Lion's Mane per serving here, as dry herb equivalent
Zero sugar, Vegan Society registered
B5 and B12 carry authorised claims for mental performance and reducing tiredness
Batch lab reports published on our science page

Contains soy
Fewer customer reviews than Ankhway
Dry herb equivalent is not physical extract weight — about 500mg of extract per serving
No trial on the finished gummies yet

Ankhway

Very well known, with tens of thousands of reviews
Ten mushrooms in one gummy
Strong, clearly presented batch testing

Sugar-based gummy
About 250mg per species is a small amount of each mushroom
Not Lion's Mane-led

Known Nutrition

Fruiting body extract with a stated polysaccharide percentage
Added niacin and iodine with authorised claims
Mid-range price

Contains glucose, sucrose and refined sugar
2,500mg is a dry herb equivalent figure

Novomins

Sugar-free
B6, B12 and iodine carry authorised claims
Vegan and halal

2,500mg is a dry herb equivalent figure
Fewer published testing details than some rivals

WeightWorld

Cheapest per day here by some distance
One-a-day, 90-day pack
Vegan and gluten free

2,000mg is a dry herb equivalent figure
No added vitamins, so no authorised claims
Fewer published testing details

The verdict

If Lion's Mane is the reason you're buying, compare the dry herb equivalent per serving and the sugar line first — those two rows separate the pack more than any marketing. FOCUS MAX has the highest stated Lion's Mane per serving here with zero sugar; WeightWorld is the value pick; Ankhway suits someone who wants a broad ten-mushroom blend rather than a Lion's Mane gummy. Whichever you choose, treat it as a food supplement: the authorised claims on these products come from their vitamins, not the mushroom.

Where Grass & Co. loses

WeightWorld is far cheaper per day than our gummies, and Ankhway has tens of thousands more customer reviews. Our headline 5,000mg is a dry herb equivalent — the physical extract is about 500mg per serving, and we say so on the label. FOCUS MAX contains soy, which rules it out for some people, and like every brand here we have no clinical trial on the finished gummies. If you want the most Lion's Mane for your money, our own capsules and powder beat our gummies.

Mentioned in this piece

Questions people ask

Do Lion's Mane gummies work?: Honest answer: no Lion's Mane product has an authorised UK health claim, and human trials on Lion's Mane are few, small and short. The permitted claims on most gummies come from added vitamins — B5 for mental performance, B12 for tiredness and fatigue. Treat any gummy as a food supplement, not a treatment.
What does 2,500mg or 5,000mg on a gummy label actually mean?: Usually a dry herb equivalent: a 10:1 extract where 250mg of extract is described as 2,500mg of mushroom. It is a legitimate way to describe concentration, but it is not the physical weight of extract in the gummy. Divide by the extract ratio to compare like for like.
Which Lion's Mane gummy has the least sugar?: From the labels we checked: Grass & Co. FOCUS MAX is zero sugar and Novomins is sugar-free, WeightWorld is low sugar, while Ankhway and Known Nutrition list glucose syrup or sugar among their first ingredients.
Where can I buy Grass & Co. FOCUS MAX gummies?: On Amazon UK, with batch lab reports published on our science page.

Sources & label checks

This is a brand-authored comparison, not an independent customer review. Prices and formulations can change; check the current pack before buying. Customer reviews do not establish health benefits.

Keep reading

Grass & Co. products are food supplements and are not intended to diagnose, treat, cure or prevent any disease. Do not exceed the stated dose. Most products are for adults; CBD is for adults only.