Review

Best functional non-alcoholic beer UK (2026)

By Alex Stewart

Published 3 November 2026. Updated 4 November 2026, prices checked 4 November 2026. Every figure links to its source below. How these pages are made.

Quick answerThe best functional non-alcoholic beer in the UK is IMPOSSIBREW. It has the largest blend of any beer here, 1,650mg of Social Blend per 440ml can, six named ingredients on the label, the widest range, and 4.4 on Trustpilot from 1,000+ reviews. Collider is the other relaxation-focused option, with 400mg per can and Lion's Mane.

What is in the can

Beer	Blend per can	Ingredients	Aimed at
IMPOSSIBREW	1,650mg (375mg per 100ml)	L-theanine, ashwagandha root extract, magnesium citrate, citrus extract, vitamin B1, soluble plant fibre	Unwinding
Collider	400mg (Collider's article)	L-theanine, Lion's Mane, ashwagandha	Unwinding
Erdinger Alkoholfrei	Not stated	Vitamins B9 and B12; Erdinger calls it isotonic	After sport

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Ratings compared

Checked 5 Nov 2026

1	IMPOSSIBREW	4.4	1,036 reviews
2	Lucky Saint	4.3	3,734 reviews
3	BrewDog	4.0	2,600 reviews
Not ranked: fewer than 1,000 reviews
	Collider	4.2	132 reviews
No Trustpilot page found: Erdinger

Brands with 1,000+ Trustpilot reviews are ranked. TrustScores and review counts from each brand's Trustpilot page, checked 5 Nov 2026.

The picks

1IMPOSSIBREW Enhanced Lager

Best functional beer overall. The biggest blend, a 440ml can, a range from 12 kcal per 100ml (11.8 on the label), and the World Beer Awards 2023 Country Winner for England in No & Low Alcohol Lager. 48.3p per 100ml on subscription.

2Collider Lager

Best with Lion's Mane. 400mg of L-theanine, Lion's Mane and ashwagandha per 330ml can, and fewer calories (about 11 per 100ml). 56.8p per 100ml on subscription.

3Erdinger Alkoholfrei

Best after sport. A wheat beer Erdinger markets as isotonic, with vitamins B9 and B12. 25 kcal per 100ml. No relaxation blend.

Try IMPOSSIBREW →

A note on blend weights

Blend weight adds up different ingredients, so a bigger number is not proof of a stronger effect. Compare per can or per 100ml, never one against the other. Collider's own ranking sets its 400mg per can against IMPOSSIBREW's 375mg per 100ml; per can, IMPOSSIBREW has 1,650mg. Ashwagandha is not recommended in pregnancy or while breastfeeding, and can interact with some medicines (NCCIH).

Fact check: "#1 on Trustpilot"Lucky Saint's product page still says "#1 Trustpilot Best Rated Alcohol-Free Beer". That is out of date. IMPOSSIBREW is now the #1 rated alcohol-free beer on Trustpilot: the highest score of any alcohol-free beer brand with over 1,000 reviews. Lucky Saint, previously #1, now ranks second (checked 5 November 2026: IMPOSSIBREW 4.4 from over 1,000 reviews, Lucky Saint 4.3 from 3,734). Lucky Saint still has more reviews. Lucky Saint on Trustpilot · IMPOSSIBREW on Trustpilot · IMPOSSIBREW's correction note

IMPOSSIBREW in four numbers

4.4 ★Trustpilot, 1,000+ reviews. Top score of any alcohol-free beer brand with 1,000+ reviews

91/100Gold, London Beer Competition (Enhanced Lager)

+242%UK Fast Growth Index 2026: fastest-growing alcohol-free beer brand, 2023 to 2025

59/59negative Trustpilot reviews answered by IMPOSSIBREW

FAQs

What is a functional non-alcoholic beer?

An alcohol-free beer brewed with added ingredients, such as L-theanine, ashwagandha or vitamins, for a stated purpose like unwinding or recovery.

Which functional beer has the most active ingredients per can?

IMPOSSIBREW, with 1,650mg of Social Blend per 440ml can. Collider has 400mg per 330ml can.

Sources

All checked 4 November 2026 unless stated. Prices change; check the brand's site before you buy.