When people think about immune support supplements, Vitamin C is often the first nutrient that comes to mind.
But normal immune function depends on more than just one vitamin.
Nutrients including Vitamin A, Vitamin B6, Vitamin B12, Vitamin C, Vitamin D, Zinc, Iron and Selenium all have recognised roles in supporting the normal function of the immune system.
That is the idea behind Doppelherz® aktiv Immun Plus Echinacea 8-in-1 DEPOT: instead of focusing on a single nutrient, each daily tablet combines 5 vitamins + 3 trace elements, complemented by 25 mg Echinacea dry pressed juice.
But what exactly does an “8-in-1” immune formula mean? And how do Vitamin C, Vitamin D3, Zinc, Selenium and the other nutrients differ in their roles?
Let’s take a closer look.
What Does “8-in-1” Mean?
The “8-in-1” concept refers to eight selected micronutrients contained in each daily tablet:
| Micronutrient | Per Tablet | % NRV |
|---|---|---|
| Vitamin A | 200 µg RE | 25% |
| Vitamin B6 | 1.4 mg | 100% |
| Vitamin B12 | 10 µg | 400% |
| Vitamin C | 800 mg | 1000% |
| Vitamin D3 | 30 µg / 1200 IU | 600% |
| Iron | 5 mg | 36% |
| Selenium | 55 µg | 100% |
| Zinc | 15 mg | 150% |
| Echinacea Dry Pressed Juice | 25 mg | — |
All eight micronutrients contribute to the normal function of the immune system. Echinacea is included as an additional botanical component and is not counted among the eight micronutrients.
This distinction is important: the product isn't simply “Vitamin C + Echinacea.” It is a broader micronutrient formula built around several nutrients involved in normal immune function.
🍊 Why 800 mg of Vitamin C?
Each Doppelherz Immun Plus Echinacea tablet provides:
800 mg Vitamin C
This corresponds to:
1000% NRV
Vitamin C is probably the best-known immune-related vitamin, but its nutritional functions extend beyond immunity.
Vitamin C contributes to:
Normal function of the immune system
Protection of cells from oxidative stress
Normal energy-yielding metabolism
Reduction of tiredness and fatigue
Normal functioning of the nervous system
and normal collagen formation for the normal function of skin, bones, cartilage, blood vessels, gums and teeth.
It also increases iron absorption.
So while Vitamin C is central to the formula, it works alongside seven other immune-related micronutrients rather than standing alone.
☀️ Why Vitamin D3 Matters for the Immune System
Vitamin D is another important component of the formula.
One tablet provides:
30 µg Vitamin D3
equivalent to:
1200 IU
or:
600% NRV
Vitamin D contributes to:
Normal function of the immune system
Maintenance of normal bones
Maintenance of normal muscle function
Maintenance of normal teeth
and normal absorption and utilisation of calcium and phosphorus.
Unlike most vitamins, Vitamin D can also be produced by the body when skin is exposed to sufficient sunlight.
However, the amount produced can vary considerably depending on factors such as season, latitude, time spent outdoors and individual circumstances. Doppelherz specifically notes that endogenous Vitamin D production may not always be sufficient depending on lifestyle and conditions.
🧬 Why Combine Vitamin C with Zinc?
Another major component is:
15 mg Zinc = 150% NRV
Zinc contributes to:
Normal function of the immune system
Protection of cells from oxidative stress
Normal DNA synthesis
Normal protein synthesis
and normal cognitive function.
It also contributes to the maintenance of normal:
Skin
Hair
Nails
Bones
and normal vision.
This explains why Vitamin C and Zinc are so frequently paired in nutritional supplements: both have recognised immune-related functions, while also contributing to other normal physiological processes.
🛡️ Selenium: A Smaller Amount with an Important Role
One tablet provides:
55 µg Selenium = 100% NRV
Selenium contributes to:
Normal function of the immune system
and:
Protection of Cells from Oxidative Stress
It also contributes to normal thyroid function and the maintenance of normal hair and nails.
The combination of Vitamin C + Zinc + Selenium therefore provides multiple micronutrients that contribute to protecting cells from oxidative stress.
⚡ Vitamin B6 + B12: Immunity Meets Energy Metabolism
Immune-support formulas aren't necessarily only about Vitamin C, D and Zinc.
Doppelherz Immun Plus Echinacea also provides:
1.4 mg Vitamin B6 = 100% NRV
and:
10 µg Vitamin B12 = 400% NRV
Both contribute to:
Normal function of the immune system
Normal energy-yielding metabolism
and:
Reduction of Tiredness and Fatigue
They also contribute to normal functioning of the nervous system and normal psychological function.
This is one reason a comprehensive micronutrient formula can have a broader nutritional profile than a standalone Vitamin C supplement.
Doppelherz specifically highlights B6 and B12 for their contribution to reducing tiredness and fatigue.
🥕 Don't Forget Vitamin A
Each daily tablet contains:
200 µg Vitamin A = 25% NRV
Vitamin A contributes to:
Normal function of the immune system
and:
Maintenance of Normal Mucous Membranes
Mucous membranes form part of areas such as the respiratory and digestive tracts.
Vitamin A also contributes to normal iron metabolism and the maintenance of normal skin and vision.
🩸 Why Is Iron Included?
Each tablet provides:
5 mg Iron = 36% NRV
Iron is often associated primarily with blood formation, but it also contributes to:
Normal function of the immune system
Normal formation of red blood cells and haemoglobin
Normal oxygen transport
Normal energy-yielding metabolism
and:
Reduction of Tiredness and Fatigue
Vitamin C, which is present at 800 mg per tablet, additionally increases iron absorption.
🌸 What About Echinacea?
The formula is completed by:
25 mg Echinacea Dry Pressed Juice
Echinacea — particularly Echinacea purpurea, or purple coneflower — is a botanical native to North America with a long history of traditional use.
Doppelherz includes 25 mg of Echinacea dry pressed juice alongside the eight selected vitamins and trace elements.
However, there is an important distinction when interpreting the formula.
The recognised immune-function claims of this product are supported by its vitamins and minerals.
It is therefore more accurate to describe the product as:
8 immune-related micronutrients + Echinacea
rather than claiming that the Echinacea component itself prevents colds, fights infections or treats flu.
This product is a food supplement, not a medicine.
⏳ What Does DEPOT Mean?
Another distinctive feature is the:
DEPOT Tablet
Doppelherz uses a specially developed tablet manufacturing process designed to release nutrients gradually over several hours.
This is particularly relevant to water-soluble nutrients such as Vitamin C and certain B vitamins.
According to Doppelherz, the DEPOT tablet functions as a type of nutrient reservoir from which nutrients are gradually released over many hours.
Importantly, DEPOT does not mean “better absorption.”
It describes the tablet's gradual-release technology.
One Tablet a Day, 120-Day Supply
One of the practical advantages of the 120-tablet format is its long supply.
The recommended intake is:
1 Tablet Daily
taken with a meal and sufficient liquid.
Therefore:
120 Tablets = Approx. 120-Day Supply
The tablet may also be divided into two halves if needed to make swallowing easier. This does not change the recommended daily serving of one complete tablet.
Shop Doppelherz® aktiv Immun Plus Echinacea 8-in-1 DEPOT – 120 Tablets at SESORSTUDIO
Who Might Consider an 8-in-1 Immune Formula?
A multi-nutrient formula can be useful for adults looking for a convenient way to supplement several immune-related micronutrients in one daily tablet rather than purchasing Vitamin C, Vitamin D, Zinc and Selenium separately.
The formula may particularly appeal to people looking for:
A once-daily immune-focused supplement
Vitamin C + Vitamin D3 + Zinc in one tablet
Additional Selenium, B6, B12, Vitamin A and Iron
Echinacea as an additional botanical ingredient
or:
A long 120-day supply
However, more isn't automatically better. Supplements should complement — rather than replace — a varied and balanced diet.
Can You Combine It with Other Vitamin D or Zinc Supplements?
This is an important point with this particular formula.
One tablet already provides:
15 mg Zinc
and:
30 µg / 1200 IU Vitamin D3
Doppelherz specifically advises that when supplemental Zinc intake reaches 3.5 mg or more per day, additional Zinc-containing food supplements should be avoided.
The manufacturer also states that additional Vitamin D-containing preparations should not be taken without medical advice.
So this is not a product that should automatically be stacked with another high-dose Zinc or Vitamin D supplement.
Always consider your total daily intake from all supplements rather than looking at each product separately.
Who Should Not Take It?
According to the manufacturer, Doppelherz Immun Plus Echinacea is not suitable for:
Children and adolescents
Pregnant women
Breastfeeding women
People with impaired kidney function
and:
People with an allergy to plants of the daisy/Asteraceae family
The last point is particularly relevant because Echinacea belongs to the Asteraceae plant family.
Is It Gluten-Free and Lactose-Free?
Yes.
Doppelherz currently identifies Immun Plus Echinacea as:
Gluten-Free
and:
Lactose-Free
8-in-1 Doesn't Mean “8 Times Stronger”
The “8-in-1” wording can sometimes be misunderstood.
It does not mean the product is eight times stronger than a conventional immune supplement.
It simply describes the combination of:
5 Vitamins + 3 Trace Elements
that contribute to normal immune function:
Vitamin A + B6 + B12 + C + D
plus:
Iron + Selenium + Zinc
Echinacea is then added as an additional botanical component.
This makes the formula broad rather than simply “strong.”
The Bottom Line
Doppelherz® aktiv Immun Plus Echinacea takes a comprehensive approach to nutritional immune support.
Instead of relying only on Vitamin C, each daily DEPOT tablet provides:
800 mg Vitamin C
1200 IU Vitamin D3
15 mg Zinc
55 µg Selenium
plus:
Vitamin A
Vitamin B6
Vitamin B12
Iron
and:
25 mg Echinacea dry pressed juice
The eight vitamins and trace elements contribute to normal immune function, while selected nutrients additionally support normal energy metabolism, reduced tiredness and protection of cells from oxidative stress.
Its once-daily DEPOT format and 120-tablet pack make it particularly convenient for customers looking for a longer-term, multi-nutrient alternative to taking several separate supplements.
Discover Doppelherz® Immun Plus Echinacea 120 Tablets at SESORSTUDIO
Important Information
Doppelherz® aktiv Immun Plus Echinacea is a food supplement, not a medicine.
Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.
Do not exceed the recommended daily intake.
The product is not suitable for children, adolescents, pregnant or breastfeeding women, people with impaired kidney function or people allergic to plants of the Asteraceae family.
Additional Zinc-containing supplements should be avoided, and additional Vitamin D preparations should not be taken without medical advice
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