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Vitamin B12, also called cobalamin or the red vitamin, belongs to the large B group of vitamins and, like other vitamins of the group, it has a very beneficial effect on the functioning of the nervous, digestive and circulatory systems.

Cobalamin ensures mental health and increases stress resistance. It contributes to the improvement of the mood, memory and mental clarity. Maintaining the right level of cobalamin in the organism can protect you from mental and neurodegenerative illnesses (such as Alzheimer's disease).

The "red vitamin", as its common name suggests, has a strong effect on the circulatory system, stimulating the production of healthy red blood cells and haemoglobin. Its deficiency causes incorrect red blood cell development, which can lead to a dangerous condition called pernicious anaemia. Cobalamin also takes part in many metabolic processes, prevents the feeling of fatigue and weakness.

Vitamin B12 is successfully used in fighting the diseases of the cardiovascular system. It protects blood vessel walls from damage and harmful cholesterol deposits and reduces the level of homocysteine - an amino acid which is a relevant risk factor of heart attacks, strokes and cerebral haemorrhages. 

Vitamin B12 deficiencies are very common and it is estimated that less than 20% of the population has the right level in the blood. As it occurs naturally mainly in foods of animal origin, its supplementation is obligatory for vegetarians. However, considering all its healthy properties, it should be consumed by virtually everyone.

While choosing a vitamin B12 supplement, you should pay attention to two issues: the dosage, which has to be high enough (absorbing cobalamin is a very complex process), and the right form, which will ensure the right bioavailability of the substance.

The active form of vitamin B12, which doesn't have to be transformed in the organism and is thus the most absorbable, is methylcobalamin. Vitamin B12 also occurs in supplements in the form of cyanocobalamin, which has to be subjected to some transformations in the organism in order to fulfil its tasks. The cycle is complicated, so the effects of cyanocobalamin therapy are visible only after some time and they are not as spectacular as in the case of methylcobalamin. 

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Seeking Health
£ 17.52

Contains unmethylated form of vitamin B12 (hydroxocobalamin); takes part in homocysteine metabolism.

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Seeking Health
£ 16.28

Bioactive, mitochondrial form of vitamin B12 – adenosylcobalamin.

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Trec
£ 5.77
(1)

Vitamin B that activates anabolic processes. Accelerates muscle growth and improves appetite.

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Seeking Health
£ 20.41

Formula containing active forms of vitamin B12, high dose in one capsule. Appropriate for vegetarians.

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BetterYou
£ 12.16

Easy application. The product improves the metabolic and hematopoietic functions of body. High bioavailability

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Life Extension
£ 22.47

Methylcobalamin is the form of vitamin B12 active in the central nervous system.

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Jarrow Formulas
£ 8.66
(1)

Methyl B12 (methylcobalamin) is the most effective, the most readily absorbed form of vitamin B12.

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Megabol
£ 5.57
(1)

Vitamin B12 in coenzymatic form of dibencozide. It supports the growth of muscle mass and increases appetite.

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Seeking Health
£ 17.52

Dietary supplement with high doses of active forms of vitamin B12 and B9.

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Aliness
£ 6.99

A preparation containing methylated vitamin B12 with high bioavailability, in vegan capsules.

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Vitamin B12 200 mcg Out of stock
Avitale
£ 9.26

Vitamin B12 in liquid, in the biologically active form of methyl cobalamin.

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Jarrow Formulas
£ 15.46

The complex of bioactive, enzymatic vitamins B6, B9 and B12. Methylcobalamin, methylfolate and pyridoxal 5'-phosphate.

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Hydrox-Adeno B12 Out of stock
Seeking Health
£ 16.28

Each capsule provides 2000 mcg of hydroxocobalamin and adenosylcobalamin.

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Swanson
£ 15.46

Vitamin B12 as hydroxocobalamin and adenosylcobalamin in a convenient form of sublingual capsules.

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Active B12 Out of stock
Seeking Health
£ 10.10

Formula containing active forms of vitamin B12, high dose in one capsule. Appropriate for vegetarians.

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Seeking Health
£ 17.52

A complex of bioavailable vitamin B12 and folinic acid; syngergistic effects for complex methylation support

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Now Foods
£ 11.34

Supplement in the form of lozenges providing a high dose of vitamin B12 fortified with folic acid.

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Fully Active B12 Out of stock
Doctor's Best
£ 7.21

It regulates the level of homocysteine and supports the nervous system.

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Methyl B-12 Out of stock
Jarrow Formulas
£ 6.60

The best available, methylated form of vitamin B12 in form of convenient chewable pastilles.

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Life Extension
£ 12.16

Methylated forms of vitamin B12 and folic acid; the preparation regulates homocysteiną level.

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Methyl B-12 Out of stock
Now Foods
£ 7.21

Methyl B12 (methylcobalamin) is the most effective, the most readily absorbed form of vitamin B12.

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Methyl B-12 Out of stock
Now Foods
£ 14.22

Methyl B12 (methylcobalamin) is the most effective, the most readily absorbed form of vitamin B12.

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Quicksilver
£ 41.02

Vitamin B12 in the active methylated form. Supports proper functions of the nervous system.

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B-12 Liposomal Spray Out of stock
Now Foods
£ 9.28

A fantastically assimilable liposomal form of vitamin B12 complemented with substances that reinforce its activity.

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HydroxoCobalamin 1mg Out of stock
Source Naturals
£ 10.10

Bioactive-unmethylated form of vitamin B12 in delicious lozenges.

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Methylcobalamin 1mg Out of stock
Source Naturals
£ 11.34

Methylcobalamin is an active coenzyme form of vitamin B-12 and is essential for cell growth and replication.

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Vitamin B-12 500mcg Out of stock
Swanson
£ 4.10

Vitamin B-12 supports cardio health by neutralizing harmful homocysteine

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Vitamin B-12 (Hydroxocobalamin)
Vitamin B-12 (Hydroxocobalamin) Discontinued
Swanson
£ 9.28

Contains highly bioavailable hydroxycobalamin in chewable tablets with berry flavour.

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