R(h)ein Nutrition Vitamin D3 + K2 Osteo Drops

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 any material, long-term or laboratory tests. The tests are carried out by 1-2 independent consumers over a period of 7-14 days. The exact test conditions can be viewed in the test plan of the respective test report – click here to go directly to the test plan.

Manufacturers provide the tested products free of charge. We charge a one-off test fee for carrying out the tests. In addition, manufacturers pay an annual licence fee for the use of the Prüfengel seal. We also receive a commission for linking to manufacturers’ websites. These remunerations have no influence on our test results or ratings.

We guarantee transparency and a fair evaluation. For a detailed insight into our comprehensive evaluation process, please click here.

R(h)ein Nutrition®

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Vitamin D3 + K2 Osteo drops

Table of contents

Vitamin _D3 + _K2 Osteo Drops from R(h)ein Nutrition® are a liquid food supplement with vitamin _D3 and _K2.
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 drops are very easy to take. The product has optimum bioavailability for the body.
Vitamin _D3 + _K2 Osteo Drops are completely tasteless. The ease of use makes it a convenient choice. The drops are also vegetarian.
The vitamin _D3 is dissolved in high-quality MCT coconut oil and its dosage form supports ideal absorption. Vitamin D also contributes to the maintenance of normal bones.

Advantages

✅ Manufactured in Germany
✅ Quality and purity controls
✅ Pipette is made from natural rubber
✅ Neutral in taste

✅ Highly dosed

✅ Comprehensive vitamin D3 and K2 supply

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?

Criterion	Remark	Score achieved*
Product protection	Carton is sturdy, product sufficiently protected	100 points
Sustainability Packaging	Item was packed compactly, packaging waste is recyclable	90 points
Package contents & scope	1 bottle with vitamin D3+K2 Osteo	100 points
Instructions for use	Consumption recommendation available, written in German, complete and comprehensible	100 points
	Total	98 points

Weighting: 20%
*The maximum score is 100 points

The Vitamin _D3 + _K2 Osteo Drops from R(h)ein Nutrition® were delivered in a standard shipping box along with other products ordered.
The box was intact and easy to open.
The Vitamin _D3 + _K2 Osteo Drops were sent in an amber glass bottle. The bottle contains 30 ml of vitamin D3 and K2.
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 + _K2 Osteo Drops 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?

Criterion	Remark	Score achieved*
Visual appearance	Attractive design, visual appearance is flawless.	100 points
Processing	No defects present	100 points
Stability	Very stable	100 points
Sustainability of the product	No specifications, but high-quality materials	70 points
	Total	93 points

Weighting: 20%
*The maximum score is 100 points

*The vitamin D3+K2 drops are ready for the practical test.*

The Vitamin _D3 + _K2 Osteo drops from R(h)ein Nutrition® are not only functional, but also visually appealing . The high quality of the workmanship is immediately recognizable.

The stability of the dropper bottle is also very good. The bottle 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 emphasis has been placed on quality and durability. 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.

Criterion	Remark	Score achieved*
Quality	Preservative-free, GMO-free and gluten-free	100 points
Flavor	Completely tasteless	100 points
Dosage	High dosage (1000 IU/drop) of vitamin D3 and 20 µg of vitamin _K2 (natto/fermentation), optimum bioavailability	100 points
Manufacture	In Germany	100 points
Ingredient	Vegetarian	100 points
	Total	100 points

Weighting: 45%
*The maximum score is 100 points

Vitamin _D3 + _K2 Osteo Drops from R(h)ein Nutrition® can be taken pure with one drop . This makes it easy to take. The drops 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. Vitamin _K2 controls the absorption of calcium into the bones and teeth and transports the calcium there for incorporation. Vitamin K contributes to normal blood clotting. Vitamin D3 is dissolved in high-quality MCT coconut oil and its dosage form supports ideal absorption. The vitamin D oil is optimally protected from light in an amber glass bottle.
Another positive aspect is that the product is not only preservative-free, but also GMO- and gluten-free.
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 + _K2 Osteo Drops from R(h)ein Nutrition® maintained their very good overall impression even after testing .

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?

Criterion	Remark	Score achieved*
Price / performance ratio	Very good performance in the lower price segment	90 points
Rating cut	Not rated, as there are still too few customer reviews.
	Total	90 points

Weighting: 15%
*The maximum score is 100 points

Prices of up to €47 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €17. The Vitamin _D3 + _K2 Osteo Drops from R(h)ein Nutrition® are therefore currently in the upper price segment with a price of €17.77. For the quality and performance received, the price-performance ratio is very good.

Overall result

	Weighting	Score achieved*
1. packaging & contents	20%	98 points
2. product processing & appearance	20%	93 points
3. in the practical test	45%	100 points
4. price/performance & consumer ratings	15%	90 points
	Total	97 points

*The maximum score is 100 points

Vitamin D3 + K2 Osteo drops

of the brand

R(h)ein Nutrition®

achieved

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

231013020

. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

Test result:

Passed

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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