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B12-vitamiini (S -B12-TC2)

Vitamin B12 (S -B12-TC2)


A more accurate B12-TC2 test (active B12). Vitamin B12 is needed especially for the functioning of the nervous system. 

Balanced physical health and healthy habits make your day-to-day life easier, give you more energy for exercise and prevent illnesses!

Vitamin B12 (S -B12-TC2)

Vitamin B12 is needed especially for the functioning of the nervous system. It is only obtained from food of animal origin, which is why those following a largely plant-based diet should pay attention to sufficient intake of B12. Testing B12-TC2, or active vitamin B12, is the most reliable measure of vitamin B12 levels. 

If untreated, vitamin B12 deficiency can cause anemia, in which the average volume of red blood cells is typically increased. Symptoms of the nervous system, such as loss of sensation, muscle weakness or memory impairment, may also occur. 

The absorption of vitamin B12 is affected by stomach acids, smoking, various absorption disorders and alcohol consumption. These may cause a deficiency. 

This test is included in the following test packages:

Easy-to-read results report

We want to help you have more energy and feel better, not to exhaust you with complicated reports.

You will get an easy-to-read report of your results. The report shows all the results as a simple bar graph. You can easily see if your results fall within the reference values.

You will also learn what the values mean and how they can be affected with lifestyle choices, for example.

If necessary, you can order a remote consultation with a doctor after the tests as a separate service, or you can print out the results and bring them to your doctor’s appointment.


How to prepare for the test?

This test does not require fasting.

After placing the order, you will receive email instructions on how to prepare for the tests.

What does the vitamin B12 test cost?

The vitamin B12 test costs 84,70€.

Can I add other tests to my order?

Yes, you can! Add the desired products to the shopping cart and then you can take the samples at once.


The results are displayed as an easy-to-read report in the My journal section. We have tried to make the report as simple and clear as possible. We have received a lot of praise from our customers for the clarity of our reports! 

The results can be viewed on mobile or on a computer. The results are presented graphically, and the next time you get tested, the new results are updated in the same graphs. In certain tests, the value is not accurately determined after a certain limit, because it has no diagnostic significance. 

If the value is marked with red, the value falls outside the reference values. If the value is marked with green, it falls within the reference values. Some of the values also have a yellow area between them, which indicates a small deviation from the reference values. 

The results can be saved as a PDF file that opens with Adobe Acrobat, for example. If you wish, you can also print the results on paper. 

See an example of a Puhti report here. 

You can view the results in the My journal service. The service requires strong authentication with Finnish banking credentials. 

We clearly illustrate which values fall within the reference values and what the values mean. After all the results have been completed, they can be printed or downloaded in PDF format. 

If you wish, you can order a doctor’s consultation directly in the My journal service for an additional fee. Our service does not automatically include a personal interpretation or diagnosis of your results by a doctor. If you suspect a disease or have symptoms, always consult a doctor. 

Please note that most of the test packages do not require fasting. More detailed information can be found on the page of each test panel or individual test. Individual tests that require fasting are marked with a lowercase letter f in the test code. 

Try to sleep, eat, drink, exercise and work normally during the days before the test. The day before the test, try to have your meals at your usual mealtimes. Heavy stress or an intense sports performance on the previous day or the same day, for example, can also affect the values. 

Sample collection for Puhti tests is possible at more than 75 locations in 50 cities. The sample collection takes place at Mehiläinen laboratories. First, order the test package of your choice on the Puhti website. The laboratories are centrally located in cities. You can check the locations of the laboratories here. You can make an appointment here.

We recommend getting tested right away so that you can keep track of changes in your health. It is a good idea to find out the baseline before starting your exercise regimen or making other lifestyle changes so that you can see the effects of the changes in your test results. Seeing how your test results improve can motivate you to continue with your lifestyle changes. The baseline results and follow-up test results are updated on the same report in My journal, making it easy to see your progress. 

Puhti laboratory tests do not require a doctor’s referral. However, if you suspect an illness, always consult a doctor. 

You can order a doctor’s consultation separately through our service after the tests. 

You can add the desired individual tests to the ready-made test panels. The tests in the order are taken at the same time; tests in the same order cannot be divided into different testing days. 

You can add new tests to your existing order. Order the tests as usual from the Puhti page; the sampler will see all the tests you ordered in the system. Puhti tests cannot be purchased from the laboratory register. 

If you have placed a separate additional order and want to have all the tests taken at the same time, be sure to inform the laboratory. 

The order must always be filled in with the details of the person to be tested. If you want to order tests as a gift for someone else, gift cards are available. The gift card is used in Puhti’s online store, and the recipient of the gift can decide which test package they want to order. 

If you want make changes to the tests you have ordered, you can request a change to your order from our customer service before visiting the laboratory. You can contact us via the chat on our website or by phone (+358 (0)10 338 7049). 

If the order includes promotional or special offer products or test panels with a lower than normal price, we will not be able to refund the amount in full; in this case, we will refund the price paid for the product. If a product is exchanged for another, we will take into account the difference between the products and the lower price in the amount of refund. 

Please note that we do not make changes to an order that has already been used. In other words, any changes to the order must be made before visiting the laboratory. After visiting the laboratory, we will not refund used orders or parts thereof. 

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