Viridian Vitamin B12 1000µg (Methylcobalamin & Adenosylcobalamin) 150 Capsules

Viridian's Vitamin B12 1000µg is one of the most thorough B12 supplements on the UK market. It combines the two active forms your body actually uses, methylcobalamin and adenosylcobalamin, in a high-strength dose with a 150-capsule supply. If you're plant-based, over 50, or just want a B12 that actually does the job, this is a solid pick.

What it is

A daily B12 capsule containing 1000µg per serving, split between two bioactive forms:

• Methylcobalamin, the form involved in nervous system and brain function
• Adenosylcobalamin, the form your body uses inside the mitochondria for energy production

Most B12 supplements on the high street use cyanocobalamin, which is cheap and stable but needs to be converted by the body before it can be used. Viridian skip that step by giving you the active forms directly. A vegan capsule. No fillers.

Why it works

B12 is a workhorse nutrient. It contributes to normal energy-yielding metabolism, normal red blood cell formation, normal function of the nervous system, normal psychological function, and reduction of tiredness and fatigue. That's a lot of jobs for one vitamin.

B12 only occurs naturally in animal foods, which is why vegans and vegetarians often run low without realising it. Older adults are another common low-B12 group because absorption from food drops with age, and people on certain medications (metformin, long-term acid blockers) can also struggle to absorb it well.

The two-form approach matters because not everyone converts cyanocobalamin efficiently. Methylcobalamin and adenosylcobalamin are usable from the moment they hit your system.

Who it's for

Vegans and vegetarians who need a reliable B12 source. Adults over 50 who want easier absorption. People who notice low energy, brain fog, or that tired-all-the-time feeling and want to rule out a B12 shortfall as part of a sensible routine.

If you're not sure where your B12 levels actually are, our LSC Bloods and Beyond service measures it directly via a proper venous blood draw, so you can supplement based on real numbers rather than guesswork.

What's different about this version

Three things stand out. First, the dose. 1000µg is the strength most people need to top up properly, not a 25µg token amount. Second, the dual active forms. Methylcobalamin alone is good. Methylcobalamin plus adenosylcobalamin covers both the brain/nerve side and the energy/mitochondria side. Third, the supply. 150 capsules is roughly five months at one a day, which makes it strong value per capsule.

Viridian's formulas are vegan, clean-label, and made in the UK to their standard ethical brief. Plain capsule, no fairy dust.

How to use it

One capsule a day with food. Easy to fit into a daily routine alongside a multivitamin, D3 or omega-3. If you're taking it for low energy, give it at least four to six weeks of consistent use before judging the difference. If you're testing levels, leave at least 24 hours between your last capsule and the blood draw.

B12 contributes to normal energy-yielding metabolism and reduction of tiredness and fatigue.

If you're on medication, especially metformin or long-term acid suppressants, speak to your GP about your B12 status. We're happy to help you choose the right product, we just can't advise on interactions.

Browse the full Vitamins & Minerals range or call the shop on 07711 393130 if you want to talk through which form of B12 suits you.