High-Dose Vitamin B12 + Vitamin D3 for Energy & Immune Support
Doppelherz® aktiv B12 + D3 Duo Aktiv combines high-dose Vitamin B12 with Vitamin D3 in convenient ready-to-prepare drinking bottles.
Each daily bottle provides:
Vitamin B12 — 350 μg
Vitamin D3 — 25 μg / 1,000 IU
along with Vitamins B1 and B6, Niacin and the amino acids L-Glutamine and L-Serine.
Vitamin B12 contributes to normal energy-yielding metabolism and helps reduce tiredness and fatigue, while Vitamins B12 and D contribute to the normal function of the immune system.*
With a pleasant mandarin flavour and an innovative nutrient-chamber bottle, Doppelherz B12 + D3 Duo Aktiv offers a convenient alternative to conventional tablets and capsules.
⭐ Why You'll Love It
✔ High-Dose Vitamin B12 – 350 μg
✔ 14,000% NRV Vitamin B12
✔ Vitamin D3 – 25 μg / 1,000 IU
✔ 500% NRV Vitamin D
✔ With Vitamin B1, B6 & Niacin
✔ With L-Glutamine & L-Serine
✔ Vitamin B12 Supports Normal Energy Metabolism*
✔ Vitamin B12 Helps Reduce Tiredness & Fatigue*
✔ Vitamins B12 & D Support Normal Immune Function*
✔ Vitamin D Supports Normal Bones & Muscle Function*
✔ Practical 2-Phase Drinking Bottle System
✔ Delicious Mandarin Flavour
✔ Gluten-Free
✔ Lactose-Free
✔ Only 1 Drinking Bottle Daily
✔ 30 Bottles = Approx. 30-Day Supply
⚡ 350 μg High-Dose Vitamin B12
Each drinking bottle contains:
Vitamin B12 — 350 μg / 14,000% NRV
Vitamin B12 contributes to:
Normal energy-yielding metabolism*
Reduction of tiredness and fatigue*
Normal functioning of the nervous system*
Normal psychological function*
Normal red blood cell formation*
Normal immune system function*
and has a role in the process of cell division.*
This makes Vitamin B12 350 μg one of the most important SEO terms for the product.
☀️ Vitamin D3 – 1,000 IU
The major difference between this product and Doppelherz B12 Vita-Energie is the addition of a substantial daily amount of Vitamin D3.
Each bottle provides:
Vitamin D3 — 25 μg
equivalent to:
1,000 IU / 500% NRV
Vitamin D contributes to:
Normal function of the immune system*
Maintenance of normal bones*
Maintenance of normal teeth*
Normal muscle function*
and contributes to normal absorption and utilisation of calcium and phosphorus.*
This gives the product a much stronger Energy + Immune Support positioning than a standard B12 supplement.
🔋 B1, B6 & Niacin
The formula additionally provides:
Vitamin B1 — 0.55 mg / 50% NRV
Vitamin B6 — 0.7 mg / 50% NRV
Niacin — 8 mg NE / 50% NRV
These B vitamins contribute to normal energy-yielding metabolism.*
Vitamin B6 and Niacin also contribute to the reduction of tiredness and fatigue.*
💪 With L-Glutamine & L-Serine
Each daily bottle also provides:
L-Glutamine — 50 mg
L-Serine — 40 mg
These amino acids complement the vitamin formula and distinguish B12 + D3 Duo Aktiv from conventional B12/D3 tablets.
I would list these as formula features rather than making additional health claims specifically about L-Glutamine or L-Serine.
🧪 Innovative Duo Aktiv Drinking Bottle
The product uses a practical 2-phase nutrient-chamber system that keeps the nutrient powder separate from the liquid until shortly before consumption.
How to Use
1. Twist
Turn the cap clockwise beyond the clicking point to open the nutrient chamber.
2. Shake
Shake thoroughly until the nutrient powder is completely dissolved.
3. Open & Drink
Turn the cap in the opposite direction, open the bottle and drink.
This Twist – Shake – Drink format is worth showing on your Shopify page because international customers may otherwise not immediately understand how the bottle works.
🍊 Mandarin Flavour
Doppelherz B12 + D3 Duo Aktiv has a pleasant natural mandarin flavour.
The liquid is also:
Gluten-Free
Lactose-Free
🔬 Nutritional Information
| Nutrient |
Per Drinking Bottle |
% NRV |
| Vitamin B12 |
350 μg |
14,000% |
| Vitamin D3 |
25 μg / 1,000 IU |
500% |
| Vitamin B1 |
0.55 mg |
50% |
| Vitamin B6 |
0.7 mg |
50% |
| Niacin |
8 mg NE |
50% |
| L-Glutamine |
50 mg |
— |
| L-Serine |
40 mg |
— |
NRV = Nutrient Reference Value.
One drinking bottle corresponds to the recommended daily serving.
🌿 Ingredients
Water, Fructose, Isomaltulose, L-Glutamine, L-Serine, Inulin, Natural Flavour, Sodium Benzoate, Potassium Sorbate, Niacin, Citric Acid, Vitamin B6, Vitamin B1, Magnesium Salts of Fatty Acids, Silicon Dioxide, Vitamin B12, Beta-Carotene and Vitamin D.
Dietary Information
Gluten-Free
Lactose-Free
Contains Fructose
Contains Isomaltulose
📦 Product Information
| Item |
Details |
| Brand |
Doppelherz® aktiv |
| Product |
B12 + D3 Duo Aktiv |
| Product Type |
Food Supplement |
| Form |
Drinking Bottles |
| Primary Focus |
Energy + Immune Support |
| Vitamin B12 |
350 μg |
| Vitamin D3 |
25 μg / 1,000 IU |
| Additional Vitamins |
B1, B6 & Niacin |
| Amino Acids |
L-Glutamine & L-Serine |
| Flavour |
Mandarin |
| Daily Intake |
1 Bottle |
| Pack Size |
30 Drinking Bottles |
| Supply Duration |
Approx. 30 Days |
| PZN |
17586004 |
| GTIN / EAN |
4009932132588 |
| Manufacturer |
Queisser Pharma GmbH & Co. KG |
📝 Recommended Use
Take the contents of 1 drinking bottle daily.
Prepare immediately before consumption:
Twist → Shake → Open → Drink
30 Drinking Bottles = Approx. 30-Day Supply
⚠️ Important Information
Do not exceed the recommended daily intake.
Food supplements should not be used as a substitute for a varied, balanced diet and healthy lifestyle.
Not suitable for children or adolescents.
Not suitable during pregnancy or breastfeeding.
Keep out of reach of young children.
Protect from direct sunlight and store at no more than 25°C.
Because natural mandarin flavour is used, colour changes may occur during storage; according to the product information, this does not affect product quality.
🏭 Manufacturer
Queisser Pharma GmbH & Co. KG
Schleswiger Straße 74
24941 Flensburg
Germany
