Vitamin B12 Adenosylcobalamin Liquid
Boost cellular energy quickly with sublingual adenosylcobalamin B12
★★★★★
Nutri Tailor 4.6/5 "Excellent" on Trustpilot
100ml
1754 day supply
per day
Guaranteed additive free
Highest purity
Therapeutically effective
★★★★★ "I won't go back to high street supplements. The difference in quality is something you can actually feel." Susie
Have questions about Vitamin B12 Adenosylcobalamin Liquid?
"When would I choose adenosylcobalamin over methylcobalamin?"
"I have chronic fatigue. Could my mitochondria need this form specifically?"
"Can I combine this with the methylcobalamin liquid for full B12 coverage?"
Get tailored guidance from Nutri365, your personal AI health expert.
★★★★★ "Finally, something that tells you what you actually need." Sarah
Boost cellular energy quickly with sublingual adenosylcobalamin B12
A liquid vitamin B12 providing 76mcg of adenosylcobalamin per single drop in a purified water base. Adenosylcobalamin is the mitochondrial form of B12, serving as a cofactor for the enzyme methylmalonyl CoA mutase within the mitochondria. This enzyme is essential for energy production from odd chain fatty acids and branched chain amino acids. When adenosylcobalamin is insufficient, methylmalonic acid accumulates, which can be measured in blood or urine as a specific marker of functional B12 deficiency.
The liquid format offers two advantages over capsules: flexible dosing (the dose can be adjusted drop by drop) and the option for sublingual absorption (drops placed under the tongue are absorbed directly into the bloodstream, bypassing the digestive system). This is particularly valuable for those with B12 absorption issues due to low stomach acid, intrinsic factor deficiency, pernicious anaemia or digestive conditions. The bottle provides 1754 servings per 100ml, making it exceptionally economical for long term use.
Key benefits:
- Quick energy via sublingual absorption
- Cellular fuel for mitochondria
- Active B12 no conversion needed
| 1 drop contains: | %NRV* | |
|---|---|---|
| Vitamin B12 | 76 mcg | 3040% |
† Nutrient Reference Value (NRV*) not established
Purified Water, Adenosylcobalamin.
1 serving = 1 drop | 1754 servings per 100ml
Directions for use:
Take 1 drop per day in water with food.
The drop can be added to a small glass of water, taken directly on the tongue or held under the tongue for 30 seconds for sublingual absorption. For those specifically targeting mitochondrial energy, 2 to 3 drops daily may be used.
For comprehensive B12 support covering both mitochondrial and methylation functions, pair with Vitamin B12 Methylcobalamin Liquid, or use TRI B12 Liquid which provides all three forms in a single product.
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Suitable for men.
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Suitable for women.
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Suitable for people under sixteen years of age.
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If pregnant or breastfeeding consult your healthcare professional before purchasing and consuming this product.
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Suitable for vegetarians.
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Suitable for vegans.
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No gluten containing ingredients.
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No nut containing ingredients.
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No dairy containing ingredients.
If you are taking medication consult your prescribing physician before purchasing and consuming supplements.
Store in a refrigerator once opened.
Keep out of reach of children.
Information displayed does not constitute medical advice.
This product should not be used as a substitute for a varied diet.
Once opened, consume within 3 months.
Quality promise
Why clinical grade matters
- ✓ GMP certified, pharmaceutical grade manufacturing
- ✓ Made in UK cleanroom facilities, ISO 9001 & ISO 14001 accredited
- ✓ No fillers, binders or additives — only active ingredients
- ✓ Fully traceable from raw material to finished product
- ✓ Non-GM, non-irradiated, 100% green energy manufacturing
Evidence
What the research shows
Our Health Reference Library is an ever-growing collection of peer-reviewed research and health guidance.
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Frequently asked questions
Why take Vitamin B12 Adenosylcobalamin Liquid?
Vitamin B12 Adenosylcobalamin Liquid supports energy production, nervous system function, and stress resilience.
When should I take B vitamins?
Take in the morning with food to support energy throughout the day.
What are signs of B vitamin deficiency?
Common signs include fatigue, brain fog, mood changes, and numbness.
What does methylated mean?
Methylated B vitamins are pre-activated forms your body can use immediately. Important for those with MTHFR gene variations.
Can B vitamins cause anxiety?
Some people are sensitive to certain B vitamins. Start with a lower dose and take with food if you notice overstimulation.
Why do B vitamins turn urine yellow?
Riboflavin (B2) causes bright yellow urine. This is harmless and shows the vitamins are being processed.
