About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out material, long-term or laboratory tests. Our aim is to provide honest feedback to help you make a purchasing decision. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product reviews, please click here.

R(h)ein Nutrition®
Vitamin C + Vitamin D + Zinc Immune System Ultra

Our health and well-being are always our priority. Therefore, the selection of suitable food supplements is of crucial importance. This is where R(h)ein Nutrition’s Vitamin C + Vitamin D + Zinc Immune System Ultra comes into play – a product characterized by its exceptional quality. They have been developed to stimulate and strengthen the immune system and provide energy. They are easy to swallow. Overall, the Vitamin C + Vitamin D + Zinc Immune System Ultra provide comprehensive support for health and well-being, making them a valuable addition to the diet.

Advantages

✅ Highly dosed and bioactive
✅ Comprehensive vitamin supply
✅ Only 1 capsule a day
✅ Manufactured in Germany

Disadvantages

❌ None

The first impression

Packaging and contents

ℹ️ Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?

CriterionRemarkScore achieved*
Product protectionCarton is sturdy, product sufficiently protected100 points
Sustainability PackagingUnnecessary packaging waste has been avoided, the plastic film protects the product components90 points
Package contents & scope1 tin with 120 capsules100 points
Instructions for useWritten in German, easy to understand100 points
Total98 points
Weighting: 20%
*The maximum score is 100 points

The Vitamin C + Vitamin D + Zinc Immune System Ultra from R(h)ein Nutrition® was delivered in a standard shipping box along with other products ordered.
The box was intact and easy to open.
The vitamin capsules were sent in a capsule box.
The remaining space in the package was filled with crumpled paper. This type of packaging optimally protected the product from external influences. In this case, the product was fully protected and therefore in perfect condition.
The packaging is recyclable. Both the cardboard and the filling material are fully recyclable.
The Vitamin C + Vitamin D + Zinc Immune System Ultra from R(h)ein Nutrition® make a very good impression overall. The product is undamaged and the packaging is in very good condition.

The first time in your hand

Product processing and appearance

ℹ️ Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?

CriterionRemarkScore achieved*
Visual appearanceAttractive design, visual appearance is flawless.100 points
ProcessingNo defects present100 points
StabilityVery stable100 points
Sustainability of the productAction tree100 points
Total100 points
Weighting: 20%
*The maximum score is 100 points
The vitamin capsules are ready for the practical test.

The Vitamin C + Vitamin D + Zinc Immune System Ultra from R(h)ein Nutrition® are not only functional, but also visually appealing . The high quality of the workmanship is recognizable.

The stability of the tin with the capsules is also excellent. The tin is easy to handle and makes a stable and durable impression.

Another positive aspect is that the manufacturer has already planted over 100 trees in collaboration with Aktion Baum. This is a commendable contribution to environmental protection and demonstrates the company’s social commitment .

In addition, R(h)ein Nutrition® presents a selection of other nutritional supplements.

This is what our practical test showed

Does the manufacturer keep its advertising promises?

ℹ️ Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

CriterionRemarkScore achieved*
StorageKeep out of the reach of children, in a dry, cool and dark place.100 points
QualityPreservative-free, GMO-free and gluten-free100 points
FlavorCompletely tasteless100 points
DurabilityApprox. 2 years100 points
SizeEasy to swallow100 points
Total100 points
Weighting: 45%
*The maximum score is 100 points

The Vitamin C + Vitamin D + Zinc Immune System Ultra from R(h)ein Nutrition® provide all the vitamins you need for a healthy immune system. The composition is of the highest quality, without preservatives – but with high-quality zinc, vitamin C and vitamin D. This composition stimulates and strengthens the immune system and provides it with energy. The capsules are easy to swallow. In general, the product is an excellent addition to the diet.

Price/performance ratio

and ratings from consumers

ℹ️ Finally, we examine how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also look at the consumer reviews and check whether the critical and positive reviews are actually justified.

CriterionRemarkScore achieved*
Price / performance ratioGood performance in the lower price segment80 points
Rating cutNot rated, as there are still too few customer reviews.
Total80 points
Weighting: 15%
*The maximum score is 100 points

Prices of up to €24 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €9. The Vitamin C + Vitamin D + Zinc Immune System Ultra from R(h)ein Nutrition® is therefore currently in the lower price segment with a price of €12.95. For the quality and performance received, the price-performance ratio isvery good.

Overall result

WeightingScore achieved*
1. packaging & contents20%98 points
2. product processing & appearance20%100 points
3. in the practical test45%100 points
4. price/performance & consumer ratings15%80 points
Total97 points
*The maximum score is 100 points
Vitamin C + Vitamin D + Zinc Immune System Ultra
of the brand
R(h)ein Nutrition®
achieved
97
Points in our test and therefore passed. The test was carried out in the test period
12/23
and is stored in our database under the licence number
231013018
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observation and do not include long-term or laboratory tests. The test ratings reflect the opinion of our experts and are based on careful analysis. We would like to emphasize that these evaluations do not claim to be exhaustive and reflect both subjective and objective impressions. The assessments are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a reputable and thorough testing process, which has been developed in a long and professional process in close cooperation with our experts.

show more +

Download

Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

Similar Tests & Comparisons

  • Penerl Football – Shin guards for children

    Penerl Football – Shin guards for children

    11/24
  • Drive-on ramps for cars

    Drive-on ramps for cars

    11/24
  • Ehrenkind all-year sleeping bag with feet

    Ehrenkind all-year sleeping bag with feet

    11/24
  • Pleasure Planet Pocket Pussy

    Pleasure Planet Pocket Pussy

    11/24
  • Levoit – Air purifier Core 400s

    Levoit – Air purifier Core 400s

    11/24
  • KAIMANA Kids snorkelling set Kids SeaExplorer

    KAIMANA Kids snorkelling set Kids SeaExplorer

    11/24
  • KAIMANA snorkelling set AquaVision Elite

    KAIMANA snorkelling set AquaVision Elite

    11/24
  • Toilet paper from GOODS+GADGETS

    Toilet paper from GOODS+GADGETS

    11/24

How Prüfengel rates products


Our product evaluations are carried out exclusively through direct, on-site tests. This ensures a detailed and specific examination of the product properties. You can find more information about the test procedure here.

Further practical tests

  • Nasal filter from BestBreathe

    Nasal filter from BestBreathe

    09/24
  • BÜCHEL bike bag for pannier rack

    BÜCHEL bike bag for pannier rack

    03/24
  • French press glass in the 2023 test

    French press glass in the 2023 test

    03/23
  • Winter jacket MERIK in test 2023

    Winter jacket MERIK in test 2023

    07/23
  • ELANI rebounder

    ELANI rebounder

    05/24
  • Cotton fitted sheet in the test 2023

    Cotton fitted sheet in the test 2023

    08/23
  • Cable lug pliers Hektor incl. cable lug assortment in test 2023

    Cable lug pliers Hektor incl. cable lug assortment in test 2023

    01/23
  • Height-adjustable desk from MAIDeSITe

    Height-adjustable desk from MAIDeSITe

    08/24

Categories

Discover our tests & comparisons in the various categories.
Car & Motorcycle
Clothing
Garden
Baby & Child
DIY store
Home & Living
Sport & Leisure
Household
Outdoor
Pets
Bathroom
Technology
Car & Motorcycle
Clothing
Garden
Baby & Child
DIY store
Home & Living
Sport & Leisure
Household
Outdoor
Pets
Bathroom
Technology