Vitamin B12 Dual Power
⏳ 12 months supply per pack (365 tablets)
FREE Magnesium 3-in-1
when you spend £35+. Auto-adds to basket.
Vitamin B12 Dual Power
Nutrition Geeks works with accredited, independent laboratories to verify the label accuracy and quality of its products.
- Vitamin B12 Meets Label Claim 1000µg/serving
TEST DATED AUG 24, 2026
Testing conducted by Marfleet Analytical Services
Results reflect laboratory analysis of submitted samples at the time of testing as reported by the testing laboratory. Results do not guarantee future performance, stability, or shelf life. Product labeling and regulatory compliance remain the responsibility of the brand.
Ingredients:
Supply: Each pack contains 365 tablets (12 months supply) of Vitamin B12 Dual Power.
Cost per serving: 2p
Directions:
All UK orders qualify for fast and free tracked UK delivery.
Delivery takes 1-2 days.
Please review our delivery policy for full delivery details.
Why are customers switching to Vitamin B12 Dual Power
Discover why millions of customers are switching to Nutrition Geeks from other brands.
I've been using the bundles for over a year now, I can't believe the difference it has made to my body, soul and mind. I actually remember stories in my dreams. My period has normalised back to 3days and anxiety/insomnia gradually faded.
Part of a regular order. Easy to swallow.
Very quick delivery and its working well already for both of us with our health problems
Hi Emily,
Thank you for your lovely review. We’re pleased your order arrived quickly and that Vitamin B12 Dual Power is already working well for both of you. We appreciate you choosing Nutrition Geeks and wish you both continued wellbeing.
Regards,
Nutrition Geeks
Outstanding product, will recommend to friends and family
Amazing
Great item , bought many times!
I suffer from chronic fatigue, and this tiny, easy to swallow, tablet makes a noticeable daily difference. A little while after I take it there is a genuine boost to my energy levels and clarity of mind. I take a few different supplements, but this is the one I always remember to take every day.
Hi Amanda,
Thank you for sharing your experience with Vitamin B12 Dual Power. It’s great to hear that the easy-to-swallow tablet has become a reliable part of your daily routine and that you’ve noticed a difference in your energy and clarity. We appreciate your thoughtful review and your support of Nutrition Geeks.
Regards,
Nutrition Geeks
Excellent value for money and super quick delivery
Very quick delivery ordered sat got Sunday morning excellent value for money. Always buy from geeks.
The only problem is the bombardment of ads a several times a day after the purchase
Very good and will continue to take it
Amazing delivery next day
great service all round
I have a lot more energy now. I have been taking a different B12 for about 18 months without any improvement. This one is a different combination and has a much better result
Hi Pam,
Thank you for sharing your positive experience with the Vitamin B12 Dual Power. We're delighted to hear it has made a difference for you. Your feedback is greatly appreciated.
Regards,
Nutrition Geeks
The speed of the delivery was amazing...the product and price are also brilliant
I got these for my Husband who takes Lanzoprazole medication which stops absorption from foods. His restless legs at night have ceased & it has helped improve the clarity of his communication. Not so muddled or struggling to say what he wants.
Came on time and a good price as always , only shop at geeks …
Everything was marvellous
Very good service and very helpful and quick delivery always deliver
Love the products - vitamins
Can not wait to try these. Prompt delivery
Thank you
Quick delivery
I’ve only been taking these a few weeks but I’m already feeling a massive improvement in my energy levels.
Really helping with my focus on the job and no more mid afternoon slumps!
Great value for money too 😄
Hi Michelle,
Thank you for sharing your positive experience. We're delighted to hear that our Vitamin B12 Dual Power is making such a difference for you. Your feedback motivates us to continue providing quality products.
Regards,
Nutrition Geeks
good value for money, quick delivery.
I was really struggling with the afternoon energy crash. I was finding that if I closed my eyes I would fall asleep which was not like me. Since taking the B12 I have not had that feeling. It helps e get through the day. Thanks you for making me feel normal again!
Hi Elizabeth,
Thank you for sharing your experience. We're delighted to hear that our Vitamin B12 Dual Power is helping you maintain your energy throughout the day. Your feedback motivates us to continue providing quality products.
Regards,
Nutrition Geeks
fast delivery
Excellent service, very happy with my order .
Great product Great price fast delivery
Great products.
Love
Hi There,
Thank you for sharing your positive experience. We're delighted to hear you love the Vitamin B12 Dual Power. Your support means a lot to us.
Kind regards,
Nutrition Geeks
Fantastic product, which arrived quickly after ordering and was well packaged. Easy to take each day and package has lots of interesting relevant information on the back of it.
Hi There,
Thank you for sharing your positive experience with our Vitamin B12 Dual Power. We're glad to hear it arrived quickly and that you find the packaging informative and easy to use. Your satisfaction is our priority.
Kind regards,
Nutrition Geeks
Very good
Frequently Asked Questions
Common questions about Vitamin B12 Dual Power🎁 How do I get the free gift?
Add £35 or more of products to your basket at checkout and you'll receive a FREE pack of Magnesium (6-week supply, worth £9.99) automatically... no code needed!*
The free gift is added automatically when your basket reaches £35 before checkout.
Why is it important to take both Methylcobalamin and Adenosylcobalamin?
How should I take Vitamin B12 Dual Power tablets for the best results?
What are the signs of Vitamin B12 deficiency, and who is at risk?
Why is Vitamin B12 supplementation important for vegans and vegetarians?