*Disclaimer: The effects of the product may vary between individuals and could differ from those described on the website.


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*Disclaimer: The effects of the product may vary between individuals and could differ from those described on the website.

Revolutionary immune booster

Immunity Boost 1+2 FREE

Receive a 30-day supply

Contents: 1x Immunity Boost 1+2 FREE 60 capsules/30 days

Revolutionary immune booster

Immunity Boost 1+2 FREE

Receive a 30-day supply

3-in-1 immune system booster for a fast-active immune response and better protection against illness-causing microbes. With a superior form of vitamin C (Ester-C®) – non-acidic and gentle on the stomach.  

It delivers: 

  • 3-in-1 boosting of the immune system: a superior form of vitamin C + zinc + selenium  
  • 24/7 immune protection  
  • 300% better availability of the patented vitamin C (Ester-C®) to microbe-fighting white blood cells  
  • Supporting the production of antibodies, our special forces against microbes  
  • Over 15 years of expertise in food supplement development and production 

Join over 3.0 million satisfied Sensilab customers worldwide!  

Contents: 1x Immunity Boost 1+2 FREE 60 capsules/30 days

Sufficient for 30 days

€0.25 / Capsule

-75% discount
Special price €14.99 Regular price €59.99
In stock
5.00 1

Immunity Boost triple strength

To support our body effectively when illness-causing microbes or other “invaders” attack it, we have to reinforce all the 3 levels of defence that the immune system uses:

1) The first-defence barriers (skin, mucus membranes/like fortress walls). Main player: Vitamin C.

2) The fast-acting and less efficient innate immunity (the first immune cells/like the first police officers on the scene). Main player: Selenium.

3) The slow-acting but extremely target-oriented acquired immunity (based on antibodies/like seek-and-destroy special forces). Main player: Zinc.

And that’s why Immunity Boost offers such powerful support – because it sustains all the 3 main branches of the immune system needed to effectively protect our body from infections and cope easier with them.

3 defence lines of our immune system:

  • 1st line of defence (1): mucus, skin, tears, microbiota = protective wall (innate immunity)

  • 2nd line of defence (2): attack of a wide range of immune cells, fever, inflammation (innate immunity)

  • 3rd line of defence (3): formation of antibodies that destroy the pathogen/ microbe (adaptive immunity)

Study confirms: Ester-C®, the patented form of vitamin C, protects us 24/7

When Ester-C® was clinically studied, it was confirmed that it stays in the microbe-fighting white blood cells for up to 24 hours, which is longer than regular Vitamin C. This means it can act as an immune system booster all day long, 24/7!**

**Source: Combs MA, et al. Vitamin C Metabolites Enhance Leukocyte Uptake And Half Life: Critical Implications For Immune Enhancement. 48th Annual Meeting of the American College of Nutrition. 2007.

Our body’s defences never sleep, support them 24/7

Reinforces immune function

Prevents tiredness and fatigue

24/7 support

Helps fight illness-causing microbes

How does Immunity Boost work to reinforce your immune defences?

1. Strengthening the first-line barriers The skin and mucus membranes are the first-line defence against microbes and try to prevent their entry into the body.

Vitamin C helps create a stronger anti-microbe response by strengthening the skin and mucus membranes (by strengthening collagen, their building block). This reinforces our first barrier against microbes – hindering their passage into our body where they can infect us and multiply.

2. Sustaining the fast-acting innate immune response   White blood cells called neutrophils and macrophages are the first police officers on the scene trying to engulf and destroy invading microorganisms (viruses, bacteria, and others) and damaged cells.

Selenium enhances our immune response to microbes and protects our cells from free radicals generated during a viral attack. It helps buy time until the special forces soldiers of the acquired immunity get recruited (= produced) in high enough numbers. Usually, it takes up to 2 weeks.

3. Supporting the acquired immune response This is the evolutionary most evolved branch of our immune system. It is a specialist for each and every single microbe or other illness-causing substance.

It is based on specialised white blood cells called B cells that produce antibodies, our special forces that target and destroy problematic foreign substances as microbes. But for every newcomer that our body doesn’t know yet, it has to produce new antibodies. This process takes time and energy.

Zinc is the mineral needed for the development and growth of antibodies, the most specialised and effective weapon against illness-causing organisms.

All 3 – vitamin C, Selenium, and Zinc – protect immune cells against their own microbe-fighting weapons. When immune cells mount an attack against microbes, they use specific microbe-killing substances that can be dangerous to the immune cells and other body cells. So, Vitamin C, Se, and Zn help build a shield that protects our cells.

Triple action immune system booster

Active ingredients

Immunity Boost
Packaging (1 unit)20 capsules
Daily dose1-2 capsules
Net weight (1 unit)9.5 g

Ingredientsin 2 capsules%NRV*
Ester-C®434 mg**
- Vitamin C320 mg400
Zinc10 mg100
Selenium110 μg200

*NRV = nutrient reference value | ** = nutrient reference value not available

How to use

The recommended daily intake is 1-2 capsules.

1-2 capsules

Once per day

INGREDIENTS (in 1 capsule)

Ester-C® [calcium L-ascorbate (vitamin C)] 434 mg ((vitamin C 320 mg – 400% NRV*), bulking agent: acacia gum, capsule shell (structure): hypromellose, zinc gluconate (zinc 10 mg – 100% NRV*), selenium-enriched yeast (selenium 110 μg – 200% NRV*), anti-caking agent: magnesium salts of fatty acids. 

*NRV = nutrient reference values

Ester-C® is a trademark of The Ester C Company.


Recommended daily intake is 1-2 capsules with a glass of water after a meal.


Recommended daily intake should not be exceeded. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. A diverse and balanced diet and a healthy lifestyle are important. The colour, flavour and smell of the product may vary slightly from batch to batch due to natural variations in the properties of active ingredients. These variations have no impact on the overall quality and efficacy of the product.


If you are hypersensitive or allergic to any of the ingredients of this product or use medication, consult your doctor before use.


Keep out of reach of children! Store in a dark and dry place at a temperature below 25°C.