Which functional drink has the most Lion's Mane?

Grass & Co. FOCUS states 1,000mg of Lion's Mane extract per 250ml can. TRIP Mindful Blend lists Lion's Mane, but its current amount was not verified; Water Junkie Wide Awake lists Lion's Mane but does not say how much is in the can, and Neutonic contains none.

Which of these drinks has caffeine?

Neutonic has 120mg per 330ml can and Grass & Co. POWER has 78mg per 250ml can. Grass & Co. FOCUS and RELAX and Water Junkie are caffeine-free. TRIP's caffeine declaration was not verified from the current UK pages reviewed.

Is Neutonic a mushroom drink?

No. Neutonic is a caffeinated nootropic drink built on citicoline, L-Theanine, Rhodiola and Ginseng. It contains no mushroom extract.

The can aisle · Last updated 9 October 2026

Functional drinks compared: Grass & Co., TRIP, Neutonic and Water Junkie

Which functional drink should I buy: Grass & Co., TRIP, Neutonic or Water Junkie?

The short answer

These four drinks do different jobs. Neutonic is a caffeinated productivity can with 120mg caffeine, citicoline and no mushrooms. TRIP is an easy-drinking calm can built around 120mg Magnesium with Lion's Mane (current amount not verified). Water Junkie and Grass & Co. both make a Lion's Mane focus can and a Reishi evening can, but Grass & Co. states 1,000mg of mushroom extract per can while Water Junkie does not publish an amount. Grass & Co. adds a third option, POWER, for when you do want caffeine. If you want a stated mushroom dose with no caffeine, Grass & Co.; if you want caffeine and focus in one can, Neutonic; if total sugar matters, check the current nutrition panel rather than a no-added-sugar statement.

Focus cans, as each brand publishes them (checked September 2026)

Focus cans, as each brand publishes them (checked September 2026)
	Grass & Co. FOCUS	Water Junkie Wide Awake	Neutonic	TRIP Mindful Blend
Can size	250ml	250ml	330ml	Check label
Mushroom extract	1,000mg Lion's Mane	Lion's Mane, amount not stated	None	Lion's Mane listed; current amount not verified
Other actives	250mg Panax Ginseng, Vitamin B12	Ginseng, Ashwagandha, Lavender, Vitamins B5 and B6	500mg citicoline, 400mg L-Theanine, 400mg Rhodiola, 200mg Ginseng, 8 B vitamins	120mg Magnesium, lemon balm, chamomile
Caffeine	None	None	120mg	Check current label
Sugars per can	5.0g	1.8g	About 0g	No added sugar; total grams not verified
Calories per can	20 kcal	13 kcal	9 to 15 kcal	Varies by flavour; 23 kcal Elderflower Mint / 30 kcal Apple Blossom
Sweeteners	No artificial sweeteners	Erythritol and stevia	Heavily sweetened: sucralose and acesulfame K	Stevia and erythritol
Where to buy	Sainsbury's (meal deal, nationwide), Ocado, Booths, WHSmith, Holland & Barrett, Amazon UK and more	Brand site, Holland & Barrett and WHSmith	Brand site and retailers	Supermarkets and brand site

Evening and energy cans

Evening and energy cans
	Grass & Co. RELAX	Water Junkie Dream	Grass & Co. POWER	Neutonic
Mushroom extract	1,000mg Reishi	Reishi, amount not stated	1,000mg Shiitake	None
Caffeine	None	None	78mg	120mg
Sugars per can	4.0g	Low, check label	5g	About 0g

The trade-offs

Grass & Co.

1,000mg of mushroom extract stated on every can, the highest here
Three cans for three moments, including a caffeinated one
Easy to find: Sainsbury's meal deal nationwide, Ocado, Booths, WHSmith and Holland & Barrett

More sugar per can than Water Junkie or Neutonic; TRIP total sugar not verified
Not every flavour is stocked in every shop

Water Junkie

Very low sugar and calories
Lion's Mane, Reishi and Chaga cans, plus a wider flavour range

Does not say how much Lion's Mane or Reishi is in each can
Sweetened with erythritol and stevia

Neutonic

Most caffeine and the broadest nootropic formula here
Almost no sugar, larger 330ml can

No mushrooms
Heavily sweetened with artificial sweeteners
Too much caffeine for the afternoon for many people

TRIP

No added sugar according to its UK pages
Wide flavour range and a light, easy taste

Current Lion's Mane amount not verified
The calm story rests mainly on Magnesium

The verdict

Choose Grass & Co. if you want a stated, proper mushroom dose without caffeine, an evening can and a caffeinated one from the same range, and the easiest to pick up in a Sainsbury's meal deal. Choose Neutonic if caffeine is the point. Check current total-sugar figures before ranking TRIP against these cans.

Where Grass & Co. loses

Water Junkie Wide Awake states 1.8g sugar, against our 4 to 5g. Current total-sugar figures for TRIP were not verified. On caffeine for a hard push, Neutonic has more.

Mentioned in this piece

Questions people ask

Which functional drink has the most Lion's Mane?: Grass & Co. FOCUS states 1,000mg of Lion's Mane extract per 250ml can. TRIP Mindful Blend lists Lion's Mane, but its current amount was not verified; Water Junkie Wide Awake lists Lion's Mane but does not say how much is in the can, and Neutonic contains none.
Which of these drinks has caffeine?: Neutonic has 120mg per 330ml can and Grass & Co. POWER has 78mg per 250ml can. Grass & Co. FOCUS and RELAX and Water Junkie are caffeine-free. TRIP's caffeine declaration was not verified from the current UK pages reviewed.
Is Neutonic a mushroom drink?: No. Neutonic is a caffeinated nootropic drink built on citicoline, L-Theanine, Rhodiola and Ginseng. It contains no mushroom extract.

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.