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 Immune System Plus

Vitamin C Immune System Plus from R(h)ein Nutrition® are food supplements with
vitamin C. It contributes to the normal function of the immune system and protects our cells from “free radicals”.
The capsules are very easy to take. The product optimally supports the body in times of increased stress. Vitamin C is not produced by the body itself and must therefore be taken in with food . The manufacturer attaches great importance to high-quality raw materials in the manufacture of the products . The ease of use makes it a convenient choice.
Clear benefits are the reduction of tiredness and the support of a healthy body.
Vitamin C influences many metabolic processes throughout the body.

Advantages

✅ Highly dosed
✅ Comprehensive vitamin C supply
✅ Bioactive
✅ Only one capsule a day

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 useConsumption recommendation available, written in German, complete and comprehensible100 points
Total98 points
Weighting: 20%
*The maximum score is 100 points

The vitamin C capsules are carefully packaged. The sturdy cardboard box offers sufficient protection during transportation. Although unnecessary packaging waste has been avoided, the use of plastic film could possibly be a point of criticism for some consumers. The product packaging contains 1 tin with 120 capsules. A consumption recommendation is also printed on the tin in German.

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 robust tin100 points
Sustainability of the productNo information on sustainability, but high-quality raw materials80 points
Total95 points
Weighting: 20%
*The maximum score is 100 points
The vitamin C capsules are ready for the practical test.

The vitamin C capsules from R(h)ein Nutrition® are not only functional, but also visually appealing . The high quality of the workmanship is immediately apparent.

The stability of the container is also very good. The container is comfortable tohold and looks robust and durable.

Although no specific information is given on the sustainability of the product, the high-quality choice of materials suggests that quality is important here. This contributes to sustainability and enables a long service life.

R(h)ein Nutrition® also offers other food supplement products .

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*
QualityManufactured in certified German production facilities100 points
AdditivesPreservative-free, GMO-free and gluten-free100 points
FlavorNeutral taste100 points
DosageHigh dosage of 500 mg vitamin C100 points
Special featureVegan100 points
Total100 points
Weighting: 45%
*The maximum score is 100 points

According to the manufacturer, the vitamin C capsules from R(h)ein Nutrition® should be taken with plenty of liquid. This makes it easy to take, even if the capsules appear relatively large at first glance.
The capsules are characterized by a high dosage of vitamin C (500 mg per capsule). Vitamin C influences many metabolic processes in the body.
It is also worth mentioning that the product is not only free from preservatives , but also contains no genetic engineering and no gluten .
In addition, the quality is characterized by the fact that the capsules undergo various purity and quality controls during production .
Unfortunately, the vitamin C capsules are only available in a pack size of 120 capsules.
In summary, it can be said that the vitamin C caps ules from R(h)ein Nutrition® have retained their excellent overall impression even after the test.

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 €16. The Vitamin C Immune System Plus Capsules from R(h)ein Nutrition® are therefore currently in the lower price segment with a price of €16.91. For the quality and performance received, the price-performance ratio is very good.

Overall result

WeightingScore achieved*
1. packaging & contents20%98 points
2. product processing & appearance20%95 points
3. in the practical test45%100 points
4. price/performance & consumer ratings15%80 points
Total96 points
*The maximum score is 100 points
Vitamin C Immune System Plus
 of the brand 
R(h)ein Nutrition®
achieved
96
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
231013019
. 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 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.

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Evaluation process

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

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