Advertising Disclosure Vitamin B12 Adenosylcobalamin With Methylcobalamin Comparison - July 2025
6 Best Vitamin B12 Adenosylcobalamin With Methylcobalamin In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchantโs customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, youโll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.9Exceptional | 2  9.8Exceptional | 3 Best Value  9.6Exceptional | 4  9.4Excellent | 5  9.1Excellent | 6  9.0Excellent |
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ModelIgennus Super Vitamin B12 Complex 5000mcg, High Strength Liquid Sublingual Spray, Methylcobalamin, Adenosylcobalamin & Hydroxocobalamin,Methylated & Clean, Natural Cherry Flavour, 45 Servings, Vegan | Model Vitamin B12 Liquid Drops (3000 mcg) Made in UK by Nature Provides - Methylcobalamin + Adenosylcobalamin (50ml), High Strength, Bioactive, Vegan, Energy & Sleep Support, Sublingual, Like B12 injections | Model Vitamin B12 Tablets High Strength - 1 Year Supply (365 Tablets) - 1000mcg Dual Power B12 Vitamin Complex with Methylcobalamin & Adenosylcobalamin - Vegan Supplement - (Packaging Design May Vary) | Model Vitamin B12 Tablets High Strength 1000mcg Methylcobalamin and Adenosylcobalamin Methylated Vitamin B 12 Complex, Vegan B12 Vitamin Tablets (Not Liquid, Not Spray) VitaBright VIT B12 Supplements | Model Vitamin B12 Drops 500 mcg, Vegan High Dose Drops, Methylcobalamin & Adenosylcobalamin Liquid, 50 ml (1700 Drops), Food Supplement Without Additives, High Bioavailability | Model Vitamin B12 Liquid Drops 3000mcg Made in The UK Adeno + Methyl 2 Month Supply Vegan High Strength Sublingual Adenosylcobalamin + Methylcobalamin 30ml |
BrandIgennus Healthcare Nutrition | Brand Nature Provides | Brand Nutrition Geeks | Brand VitaBright | Brand Vitamaze - amazing life | Brand Epigenetics |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews - |
Tech Specs | |||||
manufacturer reference- | manufacturer reference ARZER | manufacturer reference Vitamin B12 - 01 | manufacturer reference VB-B121000 | manufacturer reference 4260435489122 | manufacturer reference - |
product dimensions- | product dimensions 4 x 4 x 14 cm 0.16 g | product dimensions - | product dimensions 4.5 x 4.5 x 9 cm 30 g | product dimensions 11.68 x 3.05 x 3.05 cm 130 g | product dimensions 4 x 4 x 9 cm |
Available On | Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1Igennus Healthcare NutritionIgennus Super Vitamin B12 Complex 5000mcg, High Strength Liquid Sublingual Spray, Methylcobalamin, Adenosylcobalamin & Hydroxocobalamin,Methylated & Clean, Natural Cherry Flavour, 45 Servings, Vegan
Why we love it
Boosts energy and reduces fatigue.
Enhanced absorption through sublingual delivery.
Natural cherry flavor with no additives.
Main highlights- THREE BIOACTIVE B12 FORMS - we provide naturally occurring and bioactive forms of B12 โ methylated B12 as methylcobalamin, plus adenosylcobalamin & hydroxocobalamin (no synthetic cyanocobalamin) to achieve higher B12 uptake
- SUPPORTS ENERGY LEVELS - this B12 spray is ideal for reducing tiredness and fatigue as it contributes to normal red blood cell formation and energy-yielding metabolism
- SUPERIOR ABSORPTION - sublingual delivery boosts absorption by delivering vitamin B12 directly into the bloodstream via passive diffusion under the tongue, bypassing absorption challenges in the gut
- SUPER STRENGTH 5000 mcg - delivers a potent dose of vitamin B12 from 2 sprays; for enhanced uptake, spray once under the tongue and delay swallowing before repeating
- PURE, CLEAN & NATURAL CHERRY FLAVOUR - expertly formulated with hypoallergenic ingredients, no artificial flavours, sweeteners or unpleasant additives, sugar-free, vegan, lab-verified ingredients, GMP manufactured in the UK
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9.8
2Nature Provides
Vitamin B12 Liquid Drops (3000 mcg) Made in UK by Nature Provides - Methylcobalamin + Adenosylcobalamin (50ml), High Strength, Bioactive, Vegan, Energy & Sleep Support, Sublingual, Like B12 injections
Why we love it
High bioavailability for effective absorption.
Supports energy and reduces fatigue.
Free from artificial additives.
Main highlights- Why nature providesโ bioactive B12? Bioactive B12 provides you with a high strength (3000mcg per daily dose) and highly bioavailable source of Vitamin B12. The liquid formula uniquely combines both Methylcobalamin and Adenosylcobalamin, which are already in a methylated, active form, making them readily usable by the body without the need for conversion ( helpful for those with the MTHFR gene mutation, which around 35% of the population have but are not aware). โจ
- Support your health: Bioactive B12 promotes Mental Focus, a Healthy Nervous System, Cardiovascular Health (by fighting homocysteine), Energy Production, Adrenal Function and supports your Immune System. B12 is an essential vitamin which is involved in a significant number of actions within the body.
- Premium quality, no additives: With just 3 ingredients (Methylcobalamin, Adenosylcobalamin and reverse osmosis water) Bioactive B12 is Vegan-friendly, 100% GMO-Free and contains NO colours, flavourings, sugar or preservatives. Packaged in Miron UV-proof glass for natural protection against UV light, we use only the purest ingredients.
- How to take bioactive B12? Easy to take and tasteless, Bioactive B12 is designed to be taken sublingually (under the tongue) for optimal absorption. Simply take 1ml (13 drops) and hold the liquid under your tongue for 30 seconds before swallowing. This method bypasses the gastrointestinal tract, allowing it to go directly into your bloodstream for faster and more effective results. The liquid formula makes it easy to adjust the dose to suit your daily requirements.
- Customer peace of mind: At Nature Provides, we aim to provide comprehensive information and support. If you have any questions, our friendly team is available to offer personalised assistance to help integrate this supplement into your lifestyle. We strive for 100% customer satisfaction and are here to help if you are not completely happy with your purchase.
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9.6
3Nutrition Geeks35% Off
Vitamin B12 Tablets High Strength - 1 Year Supply (365 Tablets) - 1000mcg Dual Power B12 Vitamin Complex with Methylcobalamin & Adenosylcobalamin - Vegan Supplement - (Packaging Design May Vary)
Why we love it
Easy to swallow, small tablets.
Combines two active B12 forms.
Eco-friendly, vegan, and affordable.
Main highlights- Vegan Friendly, Gluten-free, Dairy-free, Cruelty-free, Low Carbon Footprint: We understand the importance of providing vitamins that caters to everyone's needs; are sourced & produced ethically AND accessible to all customers. There is no need to go anywhere else for your nutrition needs!
- Scientifically Proven Supplements Uncomplicated, So You Can Get The Most Out of Life. Affordable For Everyone. Delivered To You Sustainably: Good health is a need not a want. We are on a mission to make quality, science backed nutrition sustainably accessible to everyone. Less plastic, less waste. We have also committed to be the UK's leading sustainable supplement provider with a Net Zero target by end of 2025.
- Letterbox Friendly and Space Saving: Nutrition Geeks' vitamins for women and men come in flat pack packaging, saving on costly postage and storage fees associated with other bottled b12 capsules, vitamin b12 spray, b12 liquid, b12 patches, b12 injections and vitamin b complex high strength.
- Easy to Swallow With No Aftertaste: Our b12 tablets have been uniquely formulated to be just 6mm in diameter - so small you won't even notice when you swallow them! Although smaller, Nutrition Geeks' Vitamin B 12 provides 1000ฮผg (40,000% NRV) per tablet, providing maximum support your immune system & reduce tiredness.
- 12 Month Supply of Vitamin B12 Dual Power: Did you know your body requires two active forms of B12: Methylcobalamin & Adenosylcobalamin. Clinical studies show both forms should be combined for best results in treating B12 deficiency. Each pouch contains 365 B12 vitamins providing both forms in a unique 2:1 ratio.
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Value for money
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Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
