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 D3 2,000 I.U. capsules

Vitamin D3 2,000 I.U. capsules from R(h)ein Nutrition® are a food supplement containing vitamin D3.
It also has a function in cell division and contributes to the normal absorption and utilization of calcium and phosphorus and thus to a normal calcium level in the blood.
The capsules are very easy to take. The product is optimally bioavailable.
The vitamin D3 capsules are completely tasteless. A convenient choice thanks to their ease of use. The capsules are also vegetarian.
The vitamin D3 is combined with MCT coconut fat powder and thus supports ideal absorption.

Advantages

✅ Manufactured in Germany
✅ Quality and purity controls
✅ Gluten-free
✅ Yeast-free

Disadvantages

❌ None

The test

General information

We took a close look at and tested the product in a practical test. In the following, we take a closer look at the features and impressions. From the packaging, materials and quality to the range of functions and handling, the product is subjected to our test procedure.
To give you a quick overview, we work with a points system. The maximum achievable score per area is 100 points. The final overall score is calculated from the average of all tested features, taking into account the respective weighting. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product ratings, please click here.

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 capsule with vitamin D3100 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 D3 2,000 I.U. capsules from R(h)ein Nutrition® were delivered alongside other products ordered in a standard shipping carton. The contents of the package were complete and in perfect condition.
The box was undamaged and easy to open.
The vitamin D3 capsules were sent in a dark tin.
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 D3 capsules 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
ProcessingGood workmanship100 points
StabilityVery stable100 points
Sustainability of the productNo specifications, but high-quality materials70 points
Total93 points
Weighting: 20%
*The maximum score is 100 points
The vitamin D3 capsules are ready for the practical test.

The vitamin D3 capsules from R(h)ein Nutrition® are not only functional, but also visually appealing . The first-class processing quality is evident at first glance.
The capsule box also impresses with its excellent stability. The can sits comfortably in thehand and appears robust and durable.
Although no specific information is given on the sustainability of the product, the high-quality choice of materials suggests that emphasis has been placed on quality and durability.
This promotes sustainability and enables long-term use.
R(h)ein Nutrition® also offers a wide range 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*
QualityPreservative-free, GMO-free and gluten-free100 points
FlavorCompletely tasteless100 points
DosageHigh dosage (2000 IU/capsule), optimum bioavailability100 points
ManufactureMade in Germany100 points
IngredientVegetarian100 points
Total100 points
Weighting: 45%
*The maximum score is 100 points

Vitamin D3 capsules from R(h)ein Nutrition® are taken with sufficient water. This makes them easy to take. The capsules are completely tasteless.
Vitamin D is important for many bodily functions.
It also has a function in cell division and contributes to the normal absorption and utilization of calcium and phosphorus and thus to a normal calcium level in the blood. The vitamin D3 is combined with MCT coconut fat powder and thus supports ideal absorption. The vitamin D is optimally protected from light in a dark tin.
Another positive aspect is that the product is not only preservative-free, but also GMO-free and gluten-free .
Food supplements should not be used as a substitute for a balanced, varied diet and a healthy lifestyle.
healthy lifestyle . In conclusion, it can be said that the vitamin D3 capsules from R(h)ein Nutrition® maintained their very good overall impression even after testing . Overall, the vitamin D3 capsules performed excellently in all categories and presented themselves as a highly recommended product for vitamin D3 supplementation.

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 €32 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €9. The vitamin D3 capsules from R(h)ein Nutrition® are therefore currently in the lower price segment with a price of €9.29. The price-performance ratio is reasonable for the quality and performance received.

Overall result

WeightingScore achieved*
1. packaging & contents20%98 points
2. product processing & appearance20%93 points
3. in the practical test45%100 points
4. price/performance & consumer ratings15%80 points
Total95 points
*The maximum score is 100 points

The vitamin D3 capsules of the brand R(h)ein Nutrition® were rated with an overall score of 1.3 and thus successfully qualified for our test seal. The test was carried out during the test period 12/23 and is stored in our database under the license number 231013016. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

Test result:

1,3

Vitamin D3 2,000 I.U. capsules
of the brand
R(h)ein Nutrition®
achieved
95
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
231013016
. 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.

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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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