Immune Defense Ritual (Organic)

23,90 € EUR
(23,90 € / 100g)

Immune Defense Ritual
Green tea, mate enriched with vitamin C 100 g tea-filled tin

100 g tea-filled tin

Cups 50


Product rating 4.8 out of 5
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6 Reviews
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Item No. 21153A1070
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23,90 € EUR
(23,90 € / 100g)

Mate, green tea, acerola cherry, natural orange and tropical fruit flavors

Boost your immune system with a vitamin-rich organic blend of mate and green tea with clinically proven benefits!

With this healthy tea, Kusmi Tea pushes the boundaries of inventiveness and lets science do the work. What's the goal? Boost your immune system every day by enjoying our organic blend of mate and green tea with fruity notes of orange, tropical fruit, and blackcurrant. Its secret? Acerola cherries: a fruit that is especially high in vitamin C.

Because some periods are more difficult than others, no one is immune to a little "loss of momentum" leading to colds and other minor infections.

That's why we've come up with yet another innovation to deliver these benefits enjoyably. Thanks to a unique avant-garde process, our organic mate leaves are enriched with acerola extract containing just the right dose of vitamin C, known to support the immune system [1] [2] [3].

Immune Defense Ritual is effective from the very first cup, and if you want to be totally reboosted, with 3 cups a day it even provides 100% of the recommended daily intake of vitamin C!

Because it's good for the planet, it can be purchased as loose tea or in convenient on-the-go teabags.

Rebalancing your immune system takes time, so be patient! It takes at least four weeks for your body to regain its full vitality. Of course, you can drink the tea as often as you want, but the important thing is to continue enjoying it over time. 

The info you need

Not synthesized by the human body, vitamin C is essential for the body to function properly. It must therefore be provided through a varied and balanced diet. By taking your Immune Defense Ritual on a regular basis, you give your body the opportunity to better resist external threats.
The effects of vitamin C on the body's natural defenses have been validated by the European Food Safety Authority (EFSA) [5].

Numerous scientific studies show that vitamin C stimulates the migration of white blood cells to the site of infection, improving the process of virus destruction as well as microbial destruction [2] [6] [7] [8].

A clinical study of 28 subjects showed that vitamin C intake led to a 59% reduction in the duration of cold episodes [9]. An epidemiological study, this time carried out on 120 people, concluded that immunity is positively affected by the consumption of foods naturally rich in vitamin C [10].

To ensure the quality of our acerola extract, we called on the services of a laboratory specializing in plant analysis and headed by a pharmacist with expertise in pharmacology. Recurrent analyses conducted ensure that the active ingredients in our extract are present in the right amount. In this way, we are able to guarantee the full effectiveness of our product.

Click on the link to access our sources.

Information sources

  • [1] Jacques Buxeraud, Sébastien Faure, La vitamine C, Actualités Pharmaceutiques, Volume 60, Issue 604, Supplement, 2021, Pages S24-S26, ISSN 0515-3700,
  • [2] Abdullah Al Mahmud, Shafayet Ahmed Siddiqui, Md Rezaul Karim, Muhammad Rakib Al-Mamun, Shammi Akhter, Md Sohel, Mahedi Hasan, Sm Faysal Bellah, Mohammad Nurul Amin, Clinically proven natural products, vitamins and mineral in boosting up immunity: A comprehensive review, Heliyon, Volume 9, Issue 4, 2023, e15292, ISSN 2405-8440,
  • [3] Gasmi A, Shanaida M, Oleshchuk O, Semenova Y, Mujawdiya PK, Ivankiv Y, Pokryshko O, Noor S, Piscopo S, Adamiv S, Bjørklund G. Natural Ingredients to Improve Immunity. Pharmaceuticals (Basel). 2023 Apr 1;16(4):528. doi: 10.3390/ph16040528. PMID: 37111285; PMCID: PMC10143734.
  • [4] Rafaela de Aquino Souza Miskinis, Lucas Ávila do Nascimento, Rosana Colussi. Bioactive compounds from acerola pomace: A review, Food Chemistry, Volume 404, Part A, 2023, 134613, ISSN 0308-8146,
  • [5] EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA); Scientific Opinion on the substantiation of health claims related to vitamin C and protection of DNA, proteins and lipids from oxidative damage (ID 129, 138, 143, 148), antioxidant function of lutein (ID 146), maintenance of vision (ID 141, 142), collagen formation (ID 130, 131, 136, 137, 149), function of the nervous system (ID 133), function of the immune system (ID 134), function of the immune system during and after extreme physical exercise (ID 144), non-haem iron absorption (ID 132, 147), energy-yielding metabolism (ID 135), and relief in case of irritation in the upper respiratory tract (ID 1714, 1715) pursuant to Article 13(1) of Regulation (EC) No 1924/2006 on request from the European Commission. EFSA Journal 2009; 7(9):1226. [28 pp.]. doi:10.2903/j.efsa.2009.1226. Available online:
  • [6] Carr AC, Maggini S. Vitamin C and Immune Function. Nutrients. 2017; 9(11):1211.
  • [7] Eva S. Wintergerst, Silvia Maggini, Dietrich H. Hornig; Immune-Enhancing Role of Vitamin C and Zinc and Effect on Clinical Conditions. Ann Nutr Metab 1 February 2006; 50 (2): 85–94.
  • [8] Gasmi A, Shanaida M, Oleshchuk O, Semenova Y, Mujawdiya PK, Ivankiv Y, Pokryshko O, Noor S, Piscopo S, Adamiv S, Bjørklund G. Natural Ingredients to Improve Immunity. Pharmaceuticals (Basel). 2023 Apr 1;16(4):528. doi: 10.3390/ph16040528. PMID: 37111285; PMCID: PMC10143734.
  • [9] Johnston CS, Barkyoumb GM, Schumacher SS. Vitamin C Supplementation Slightly Improves Physical Activity Levels and Reduces Cold Incidence in Men with Marginal Vitamin C Status: A Randomized Controlled Trial. Nutrients. 2014; 6(7):2572-2583.
  • [10] Polak E, Stępień AE, Gol O, Tabarkiewicz J. Potential Immunomodulatory Effects from Consumption of Nutrients in Whole Foods and Supplements on the Frequency and Course of Infection: Preliminary Results. Nutrients. 2021 Apr 1;13(4):1157. doi: 10.3390/nu13041157. PMID: 33915705; PMCID: PMC8065427.



Mate* (53%), green tea* (17%), acerola cherry extract* (15%), natural tropical fruit flavor (4%), natural blackcurrant flavor*, coating agents: acacia gum* and sodium alginate of plant origin, natural mango flavor, natural orange flavor*.
*Organically grown ingredients

Acerola cherry is a natural source of vitamin C. Vitamin C helps maintain normal immune system function.

Kusmi Tea recommends drinking 3 cups (3 x 200 ml) of water per day as part of a healthy lifestyle and a varied, balanced diet.

Average nutrient values per 100 ml of tea*** : Energy value : 0 kJ-0 Kcal/Vitamin C : 13.3 mg (16.6% NRV**) /Contains negligible amounts of fat, saturated fatty acids, carbohydrates, sugar, protein and salt.
**Nutrient reference values
***For 2 g of blend infused for 3 minutes in 200 ml of 85°C water


Green Tea

Green Tea

Acerola (active ingredient)

Acerola (active ingredient)

Tropical fruits (natural flavor)

Tropical fruits (natural flavor)

Orange (naturel flavor)

Orange (naturel flavor)

Brewing Time Brewing Time 3'
Brewing Temperature Brewing Temperature 85 °C
With Immune Defense Ritual, take care of yourself and treat yourself at the same time!
pictogram of a man with a shield
Specific benefits

Boosts your immune system, preserves your vitality and stimulates the production of antibodies

pictogram of a lozenge enriched with vitamin C
A recognized active ingredient

The vitamin C present in acerola extract acts directly to strengthen the immune system

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Essential to our well-being

3 cups a day provide 100% of the recommended daily intake of vitamin C

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Proven effectiveness

The benefits of Immune Defense Ritual have been proven and recognized by clinical studies

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A product for pleasure

Unique taste, easy to integrate into your daily routine

pictogram of a vial with an acerola (Barbados cherry) in the bottle
Exclusive technology

A unique and innovative scientific process enables the active ingredient to be bound directly to our ingredients, guaranteeing its effectiveness

Questions about immune defense ritual

What is a plant extract?

The plant world is full of properties, so scientists have developed specific processes to extract the best from it.
The term "plant extract" is used to describe a substance obtained from a plant source and containing compounds that are beneficial to health: active ingredients.
Plant extracts are a great way to get the benefits of plants into your daily life.
And because pleasure remains our No. 1 objective at Kusmi Tea, we've chosen to combine the effectiveness of these extracts with unforgettable flavors!

What is an active ingredient?

Active ingredients are molecules found directly in nature: in plants, roots, fruits, vegetable oils and so on. They are particularly interesting for their qualities and properties.
Here are some examples of active ingredients you may be familiar with: caffeine in coffee, vitamin C in oranges, and omega-3 in oily fish such as salmon.

What is acerola?

Acerola, also known as West Indian cherry, is a tropical fruit native to the Caribbean islands. For thousands of years, the indigenous peoples of the Amazon region have consumed it for its beneficial effects on the body. These little red berries are characterized by their tangy taste and are a natural source of vitamin C. Their vitamin C content can be 30 to 40 times higher than oranges!

What is vitamin C? What are its effects?

Vitamin C, also known as ascorbic acid, is an essential nutrient for the proper functioning of the body. It has a protective role and multiple effects. It boosts our defenses, preserves our vitality, stimulates the production of antibodies and possesses antioxidant properties. Unfortunately, our bodies cannot synthesize this vitamin naturally, so it must be supplied through a varied and balanced diet. Taking 3 cups a day of our Immune Defense Ritual will give you 100% of the recommended daily intake of vitamin C.

visual of the ingredients in the immune ritual infusion product
Our certifications
organic label
European organic certification
organic farming certification
usda organic label
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Immune Defense Ritual (Organic)
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Jaana H. On the 2/22/24

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100 g tea-filled tin 2/11/24 Good tasting tea - not like medicin

Yasmin D. On the 10/16/23

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100 g tea-filled tin 10/4/23 Buen sabor y potencia

anonymous anonymous. On the 4/30/23

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100 g tea-filled tin 4/19/23 Very tasteful