The Best Vitamin B Complex in the UK
Before the list, the honest bit: most people eating a varied diet don't need a B complex. The two that genuinely matter in the UK are B12, for vegans, most vegetarians, over-65s and anyone on long-term metformin or a PPI, and folate for anyone who could become pregnant. If that describes you, a targeted single vitamin is usually better dosed and cheaper than a complex. If you still want the full eight in one tablet, these are the ones we would pick, chosen on B12 form, B6 level and cost per day rather than on the size of the numbers.
Ranked by real ratings · updated 20 September 2026 · how we rank
On the ratings data the strongest vitamin b complex we track is Igennus Healthcare Nutrition Igennus Super B-Complex High Absorption Methylated, on 4.6 out of 5 from 27,700 ratings. If you want to spend less, Vitabiotics Ultra Vitamin B-Complex Tablets, Vitabiotics Ultra sits at the cheaper end and still rates at or above the middle of the shelf. Neither is a paid placement, and the full working is below.
Igennus Healthcare Nutrition Igennus Super B-Complex High Absorption Methylated B Vitamins, 60
Methylated B vitamins in a clean, small-tablet format from a brand that publishes its formulation reasoning. 27,700 ratings at 4.6 is a large, settled base. It costs more than the own-label options and the methylated forms are the reason; whether that's worth it for you is covered on our vitamin B complex page.
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Nu U Nutrition Vitamin B Complex High Strength - 180 Vegan Tablets
180 vegan tablets for around £7, which is roughly 4p a day for a six-month supply. For most people taking a B complex as general cover rather than for a specific deficiency, this does the same job as products several times the price. 8,100 ratings at 4.6.
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WeightWorld Vitamin B Complex Supplement - 365 Tablets
365 tablets at around £10, so under 3p a day and one purchase a year. The practical argument for a year pack is that B vitamins are water-soluble and taken daily, so running out is the main reason people stop. 14,600 ratings.
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Nutravita Vitamin B Complex High Potency - 1 Full Year
A full-year, high-potency formulation for people who specifically want more than 100% NRV. Worth one check before you buy: high doses of B6 taken long term have been linked to nerve problems and B6 has an upper limit, so read that figure rather than assuming more is better.
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Solgar Vitamin B-Complex "100" Extra High Potency Vegetable Capsules
Solgar's B-Complex 100 is a fixture in UK health food shops and has been for decades. It's the dearest option here by some way, and what you're buying is a long track record and vegetable capsules rather than a different set of vitamins.
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Vitabiotics Ultra Vitamin B-Complex Tablets, Vitabiotics Ultra
Vitabiotics Ultra at under £5 is the cheapest way onto this shelf from a name you'll recognise from any UK pharmacy. 3,300 ratings at 4.6. If you're trying a B complex for the first time and aren't sure you'll keep taking it, start here.
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