“Been 4 weeks and really feeling the benefit now. More energy & less tired. Will be ordering again”
Brian Verified Customer
714 Reviews

Vitamin B12 Supplement

60 Capsules | 60 day supply

Support a vegan lifestyle with our high strength plant-powered B12 formula in superior methylcobalamin form. 

  • Supports cognitive health
  • Boosts energy production
  • Vital for immunity
Purchase options
  • 20% off every order - never run out
  • Skip or reschedule deliveries
  • After 2nd order, cancel anytime
How many bottles

In stock Estimated delivery in 2-3 working days

60 Day Guarantee + Free Delivery

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“Been 4 weeks and really feeling the benefit now. More energy & less tired. Will be ordering again”
Brian Verified Customer
Product Details
  • From £0.31p per day (6 bottle price)
  • 60 day supply per bottle (60 capsules)
  • For energy, mood & nervous system support
  • High potency 1,000µg methylcobalamin - highly bioavailable
  • Vegan-friendly
  • The natural, non-synthetic form of B12
  • Made in the UK to GMP standards
  • No synthetic additives - only natural science
  • 60 day money back guarantee
Ingredients
Brown Rice Flour, Capsule Shell: Vegetable Cellulose (HPMC), Rice Extract Blend (Rice Extract, Rice Hulls, Gum Arabic, Sunflower Oil), Vitamin B12 (as Methylcobalamin).

View Ingredients Label

Ingredients label
How To Use

60 capsules. 1 capsule per day.
Take consistently with water or food for the best results.

Capsule Size: 1
View Size Chart

Cautionary Advice:
If you are taking medication or under medical supervision, please consult your healthcare practitioner before taking any food supplement. Store in a cool, dry place away from direct sunlight. Keep out of reach of children. Food supplements are not to be used as a substitute for a varied, balanced diet and healthy lifestyle.

Delivery
  • Fast Delivery
  • Royal Mail Tracked 48 service
  • Delivery in 2-3 working days
  • Same day dispatch before 2pm
  • Letterbox-friendly packaging

Vitamin B12

Product Details
  • From £0.31p per day (6 bottle price)
  • 60 day supply per bottle (60 capsules)
  • For energy, mood & nervous system support
  • High potency 1,000µg methylcobalamin - highly bioavailable
  • Vegan-friendly
  • The natural, non-synthetic form of B12
  • Made in the UK to GMP standards
  • No synthetic additives - only natural science
  • 60 day money back guarantee
Ingredients
Brown Rice Flour, Capsule Shell: Vegetable Cellulose (HPMC), Rice Extract Blend (Rice Extract, Rice Hulls, Gum Arabic, Sunflower Oil), Vitamin B12 (as Methylcobalamin).

View Ingredients Label

Ingredients label
How To Use

60 capsules. 1 capsule per day.
Take consistently with water or food for the best results.

Capsule Size: 1
View Size Chart

Cautionary Advice:
If you are taking medication or under medical supervision, please consult your healthcare practitioner before taking any food supplement. Store in a cool, dry place away from direct sunlight. Keep out of reach of children. Food supplements are not to be used as a substitute for a varied, balanced diet and healthy lifestyle.

Delivery
  • Fast & Free Delivery
  • Royal Mail Tracked 48 service
  • Delivery in 2-3 working days
  • Same day dispatch before 2pm
  • Letterbox-friendly packaging

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As Featured In

  • "It contains methylcobalamin, widely considered to be the highest quality and most easily-absorbed form.”
  • "A great vitamin for the healthy functioning of the nervous system, and red blood cell formation."
  • "It is free from any synthetic fillers or ingredients and can be safely consumed alongside a vegan diet."

Natural energy that lasts

Pure methylcobalamin B12 for all-day energy without the crash.

High-Strength Methylcobalamin
1000μg of premium methylcobalamin B12—the most bioavailable form for superior absorption and utilization.
40,000% of Your Daily Needs
Powerful 1000μg dosage provides 40,000% of your daily requirement, ideal for correcting deficiencies and maintaining levels.
Energy & Mood Support
Clinically proven to reduce fatigue, support brain function, and promote positive mood and mental performance.
Vegan-Friendly Essential
Perfect for plant-based diets which naturally lack B12, in a clean formula with no synthetic additives or fillers.
  • Hormone-Free
  • No Side Effects
  • Tasteless Capsules

Vitamin B12 Supplement

Benefits Of Daily Use:

  • Energy

    Contributes to normal energy-yielding metabolism for natural get-up-and-go.

  • Mood & Mind

    Supports normal psychological function and emotional balance.

  • Immunity

    Contributes to the normal function of the immune system.

  • Blood Cell Formation

    Has a role in the process of normal red blood cell formation.

Benefits Of Daily Use:

Clean Ingredients. No Hidden Nasties.

  • Methylcobalamin

    A highly bioavailable form of B12 that contributes to normal energy production and psychological function, immediately ready for your body to use.

    Methylcobalamin

    A highly bioavailable form of B12 that contributes to normal energy production and psychological function, immediately ready for your body to use.

Full ingredient list and nutrition information
  • 100% NATURAL
  • NON-GMO
  • GLUTEN FREE
  • CRUELTY FREE
  • DAIRY FREE
  • UK-MADE

Us vs The Competition

Feature Purolabs Other brands
High strength methylcobalamin
No fillers or bulking agents
Easy to absorb
Vegan-friendly
100% satisfaction guarantee 60-day None

Frequently Asked Questions

Can I take this if I have anaemia?

Yes, many customers with anaemia respond well to this product.

However, you should consult with your GP first to discuss your particular circumstances and to understand what dose may be the most suitable for you.

How long until I experience benefits?

This will vary from person to person as we're all unique and different!

Some customers report feeling benefit in just a couple of weeks, while others may take up to 90 days.

Taking supplements should always be considered a long-term endeavour for the best possible results, and we suggest taking this product for a minimum of 60 days.

Is this cyanocobalamin?

No. Puro Vitamin B12 is formulated with superior Methylcobalamin which is easier for your body to absorb and more effective.

I'm tired. Can this help with energy?

Yes. Vitamin B12 is shown to help support energy levels and to contribute to reduced tiredness & fatigue.

Who should consider a B12 supplement?

Certain groups of people such as vegans or vegetarians, older adults, a family history of anaemia, or people with certain long-term health issues, typically have higher vitamin B12 requirements.

However it is also a common nutritional deficiency amongst the general UK population and so many people choose to take a supplement to help ensure they're getting enough.

Can Puro Vitamin B12 help with brain function?

Vitamin B12 is involved in the function and development of the brain, nerve cells, the myelin sheaths that protect nerves, and blood cells. Vitamin B12 is sometimes taken to treat memory loss, poor concentration and to boost your mood or energy levels.

Why subscribe? 

Subscribing to Purolabs is the smartest way to maintain your wellness routine, save money, and enjoy complete flexibility with your deliveries.

  • Save up to 20% – Get our best prices on every order, automatically
  • Zero Hassle – Skip or reschedule deliveries whenever you need
  • Priority Processing – Subscribers always ship first
  • Exclusive Perks – Early access to new products and special offers

Getting Started is Simple: Just click "Subscribe & Save “20% on any product page

How do I manage my subscription?

Taking control of your subscription couldn't be easier!

Simply log into your account portal to adjust orders, change delivery dates, or update your preferences.

Everything you need is right at your fingertips, no phone calls and no waiting.

Your portal puts you in complete control:

  • View Upcoming Orders – See what's coming and when
  • Swap Products – Try different formulas or flavours
  • Pause Anytime – Take a break for up to 3 months
  • Adjust Quantities – Scale up or down based on your needs
  • Update Payment – Keep your details current
  • Change Address – Update delivery information instantly
  • Add Extras – Include one-time items with your regular order
  • Track Savings – See how much you've saved as a subscriber

Remember: Every subscription is protected by our 60-day money-back guarantee, so you can subscribe with complete confidence.

Can I change products? 

Absolutely! Your wellness journey evolves, and so can your subscription. 

  • Swap between any Purolabs products
  • Adjust quantities to match your needs
  • Add one-time purchases to try something new
  • All changes take effect from your next delivery
Can I skip or reschedule deliveries?

Life happens, we get it!

  • Running low sooner than expected? Bring your order forward
  • Still have plenty? Push it back or skip a delivery, no questions asked
  • Manage everything through your customer portal in seconds
How do I cancel my subscription?

While we'd love to keep supporting your wellness journey, we understand plans change.

Cancelling is straightforward:

  • Log into your account portal
  • Open Subscription Settings
  • Select Cancel Subscription and follow the prompts

That's it, no hidden fees and no complicated process.

Please note: We have a 2-order minimum commitment to ensure you experience the full benefits of our products. The cancellation option will only appear after 2 orders.

What makes Purolabs different?

At Purolabs, we don't just add more ingredients—we choose the right ones.

Every supplement contains premium, science-backed nutrients in their most bioavailable forms, so your body actually absorbs and uses them.

We're different because we maintain a 100% clean label with no fillers, additives, or synthetic nasties—just pure, potent ingredients.

Our products are made right here in the UK to ISO 22000 certified and GMP standards, ensuring complete transparency from sourcing to delivery.

We use superior bioavailable forms of nutrients that deliver real results, not expensive waste, and we're so confident in our products that we offer a 60-day money-back guarantee.

Where is Purolabs based?

Purolabs is a small, family-run business based in South London. Founded by husband and wife Adam and Marilia, we're an independent UK company—not a faceless corporation. This means we can put quality and customers first, without shareholders pushing us to cut corners.

From our London base, we personally oversee every aspect of production and our friendly team is here to help seven days a week. When you choose Purolabs, you're supporting a local British business that genuinely cares about your wellbeing.

When will I get my order?

Orders are dispatched via Royal Mail and we typically see 99% arrive within 2-3 working days.

For faster delivery, we also offer a DHL Express next working day service.

All orders are sent promptly from our UK warehouse within 24 business hours, so you'll receive your supplements quickly whichever option you choose.

Do you offer a money back guarantee?

We believe in our products and want you to feel confident trying them risk-free so we offer a 60-day money-back guarantee.

If you're not completely satisfied with your supplements for any reason, simply return any unused bottles within 60 days of purchase for a full refund - no questions asked.

Full details are available here 

What is the packaging made from?

We're committed to protecting the planet through thoughtful, sustainable practices.

All orders arrive in our signature flat, letterbox-friendly packaging that's 100% plastic-free, zero carbon and fully recyclable.

Our shipping boxes are FSC-certified paperboard, printed with eco-friendly water-based inks, and completely biodegradable.

Even our supplement bottles and lids are made from recyclable HDPE and PP materials. By choosing innovative flat packaging over bulky boxes, we significantly reduce shipping emissions and waste.

It's just one of the ways we ensure your health supplements don't come at the cost of our planet's health.

How can I get in touch with you?

We're here to help! You can reach our friendly customer support team by emailing support@purolabs.com or using the contact form on our website.

We pride ourselves on personal service and aim to respond to all enquiries within 24 hours, seven days a week.

Whether you have questions about our products, need help with an order, or just want some supplement advice, we're always happy to chat.

Read more FAQs

Customer Reviews

4.7
Rated 4.7 out of 5 stars
Based on 714 reviews
91%would recommend this product
714 reviews
  • Joel M. M.
    Verified Buyer
    Sep 15, 2025
    Rated 5 out of 5 stars
    Everyday Immunity

    B12 not only an important part of our built - built in system, but always best to top off with purolabs supplements to strengthen the metabolism.

    Here below is a selection of the excellent purolabs vitamins I take everyday.

    So far so good as everyone around me - friends and family are tending to be affected by colds and flu symptoms and I have not been struck down by any bugs at present. I like to think it’s because I religiously take my supplements to, as far as possible, keep me in good health along with exercising too.

    At 74 I’m possibly prone to such illnesses, but taking the “Best” vitamins on the market, hopefully helps to sustain a healthy lifestyle.

  • Kathy K.
    Verified Buyer
    Jul 20, 2025
    Rated 5 out of 5 stars
    No more fatigue

    Since taking this vitamin B12 I can honestly say I am feeling less tired and more alert. I am a 72 years old auto immune sufferer taking control of my health the holistic way. Works for me!

  • Beant K.
    Verified Buyer
    Dec 1, 2024
    Rated 5 out of 5 stars
    Purolabs B12

    We are very satisfied with B12 capsules,

    He was very deficient in B12 , now getting better

  • Karl Q.
    Verified Buyer
    Aug 27, 2024
    Rated 5 out of 5 stars
    It works

    I am take this each morning and feeling the difference,

  • William H.
    Verified Buyer
    Aug 7, 2024
    Rated 3 out of 5 stars
    Mr William Hutchinson.

    Still a bit mixed up but wondered if taking them every day is too much and started to take them every alternate day. Just trying to figure out what is the best way forward. I know red meat is good for vitamin 12 but I would not have meat every day or salmon. But will carry on with another month supply and see how I go. I was born November 1937 .