Doctor Life Active B12 1000 mcg — 60 plant-based capsules

Pack size: 60 plant-based capsules
Serving: 1 capsule
Servings per pack: 60

ShopVitamins and minerals

Doctor Life

Active B12 1000 mcg

Two coenzyme forms of vitamin B12

56,99 zł

1,000 µg of vitamin B12 in one capsule
Two coenzyme forms: methylcobalamin and 5′-deoxyadenosylcobalamin
Supports energy and helps reduce fatigue

Overview

A substantial serving of vitamin B12 in a convenient plant-based capsule. Active B12 1000 mcg combines methylcobalamin, which provides 60% of the B12, with 5′-deoxyadenosylcobalamin, which provides the remaining 40%.

At the heart of the formula / Active B12 1000 mcg

Thoughtful support. Clear purpose.

011,000 µg of vitamin B12 in one capsule
02Two coenzyme forms: methylcobalamin and 5′-deoxyadenosylcobalamin
03Supports energy and helps reduce fatigue
04Supports the nervous system and normal psychological function
05A vegan formula with a 60-day supply

Doctor Life / 01

Active B12 1000 mcg

Made for your daily routine.

Vitamin B12 supports normal nervous system function, psychological function, red blood cell formation, and immune function. It also contributes to normal energy metabolism and helps reduce tiredness and fatigue.

One capsule daily keeps the routine simple, with a 60-day supply in each bottle. The plant-based HPMC capsule and absence of animal-derived ingredients make the product suitable for vegans and vegetarians.

Doctor Life / 02

Active B12 1000 mcg

Why does vitamin B12 matter for energy and the nervous system?

Vitamin B12 contributes to normal energy metabolism and helps reduce tiredness and fatigue. It also supports normal nervous system and psychological function, making adequate intake important for everyday health.

Doctor Life / 03

Active B12 1000 mcg

What research informs Active B12?

Studies of high-dose oral vitamin B12 have shown increases in blood B12 levels. A dose-finding study in older adults reported a clear response at 1,000 mcg. Oral supplementation can help address low intake, particularly when age or dietary choices increase that risk. A diagnosed deficiency may require medical assessment and an individualized treatment plan.

Ingredients / Doctor Life

Every ingredient. Clearly explained.

Each ingredient, its form and quantity — in one place.

Serving1 capsule

Ingredient amounts for the servings shown in the table.
Ingredient	1 capsule
Vitamin B12 (60% methylcobalamin, 40% 5′-deoxyadenosylcobalamin)	1,000 µg (40,000%*)

*NRV: Nutrient Reference Value

Full ingredient list

Capsule shell (bulking agent: hydroxypropyl methylcellulose), vitamin B12 (methylcobalamin, 5′-deoxyadenosylcobalamin).

How to use

Part of your daily rhythm.

How to use

Take 1 capsule daily with a meal.

Important information

Do not exceed the recommended daily serving. Food supplements should not replace a varied diet. A balanced diet and a healthy lifestyle are recommended. Store in the original packaging, away from sunlight and out of reach of young children.

Science & sources

Understand the formula.

Studies and scientific assessments establish vitamin B12's role in energy metabolism, the nervous system, normal psychological function, and red blood cell formation. Research on high oral doses provides context for a 1,000 µg serving when there is an increased need to replenish B12.

These publications concern the studied ingredients or formulas. They do not all evaluate the finished Doctor Life product, and research results do not guarantee individual outcomes.

01Scientific Opinion on the substantiation of health claims related to vitamin B12

EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA)

EFSA Journal (2010), 8(10), 1756. DOI: 10.2903/j.efsa.2010.1756.

The European expert panel confirmed vitamin B12's role in normal energy metabolism, nervous system and psychological function, red blood cell formation, and the reduction of tiredness and fatigue. These established functions explain its importance in daily nutrition.

Read publication ↗

02Oral cyanocobalamin supplementation in older people with vitamin B12 deficiency: a dose-finding trial

Simone J.P.M. Eussen et al.

Archives of Internal Medicine (2005), 165(10), 1167–1172. DOI: 10.1001/archinte.165.10.1167; PMID: 15911731.

A 16-week study in older adults compared oral vitamin B12 doses from 2.5 to 1,000 µg. The highest dose produced the strongest response in a marker of B12 status, providing context for the use of a 1,000 µg serving in this population.

Read publication ↗

03Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency

Hua Wang, Li Li, Ling-Ling Qin, Yan Song, Joan Vidal-Alaball, Tian-Hui Liu

Cochrane Database of Systematic Reviews (2018), 3, CD004655. DOI: 10.1002/14651858.CD004655.pub3; PMID: 29543316.

A review of randomized trials found that high oral doses of vitamin B12 can effectively increase blood B12 levels. These findings contribute to research on oral supplementation as a convenient delivery method.

Read publication ↗

FAQ / Active B12 1000 mcg

Good questions. Clear answers.

Talk to us ↗

How do I take Active B12 1000 mcg?

Take one capsule daily with a meal. Do not exceed the recommended serving.

Which forms of vitamin B12 does the product contain?

The product combines methylcobalamin and 5′-deoxyadenosylcobalamin, providing 60% and 40% of the total vitamin B12 serving, respectively.

How much vitamin B12 does each capsule provide?

Each capsule provides 1,000 mcg of vitamin B12, or 40,000% of the EU Nutrient Reference Value (NRV).

How many days does a bottle provide?

Each bottle contains 60 capsules, providing 60 days of use at 1 capsule daily.

Who should pay particular attention to vitamin B12 intake?

People following plant-based diets and older adults should pay particular attention to vitamin B12 intake. The product is also an option for adults who want to supplement B12 to support normal energy metabolism, nervous system function, and psychological function.

Is it suitable for vegans?

Yes. The vitamin B12 comes in a hydroxypropyl methylcellulose (HPMC) capsule, and the formula is vegan.

Does the higher B12 amount mean taking several capsules?

No. One capsule provides the full recommended daily serving of 1,000 mcg. Take it once daily with a meal.

Doctor Life formulas