The biotin + zinc + selenium capsules from R(h)ein Nutrition support beauty from the inside out with a unique combination of biotin, zinc and selenium.
They promise not only healthy skin, hair and nails, but also normal energy metabolism and normal functioning of the nervous system. Biotin is a key building block for healthy skin and hair.
The capsules are manufactured in certified German production facilities and are vegan, which guarantees the highest quality.
R(h)ein Nutrition attaches great importance to pure food supplements without superfluous additives.
The high dosage of biotin can lead to concerns for some people. People who already take other supplements containing biotin should keep an eye on the total dose.
Overall, R(h)ein Nutrition ‘s Biotin + Zinc + Selenium capsules are a promising way to promote beauty and well-being from the inside out.
They offer a wide range of benefits for skin, hair and nails in particular.
The high-quality processing and the absence of unnecessary additives underline the quality of these products.
However, to avoid a possible overdose, you should be aware of the high dosage of biotin and carefully check whether it fits into your own diet. If in doubt, always consult a doctor.
All in all, the capsules are a promising product for anyone who wants to support their beauty routine from the inside out.
Advantages
✅ High bioavailability
✅ High quality processing
✅ Vegan and free from unnecessary additives
Disadvantages
❌ Very rare intolerance
❌ Very high dosage of biotin
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 | Product was not provided in the original box for the test | n/A |
| Sustainability Packaging | Unnecessary packaging waste has been avoided, the plastic film protects the product components | 90 points |
| Package contents & scope | All parts of the product and the accessories according to the description available | 100 points |
| Instructions for use | Consumption recommendation available, written in German, complete and comprehensible | 100 points |
| Total | 97 points |
*The maximum score is 100 points
The biotin + zinc + selenium capsules from R(h)ein Nutrition were not provided for the test in their original packaging, but in a normal shipping carton together with other products from the brand.
There are positive and negative features with regard to the sustainability of the packaging . The capsules are stored in a plastic container that is well suited for transportation.
The plastic film used around the lid protects it from unintentional opening and therefore also contributes to better product safety. The avoidance of unnecessary packaging waste is commendable.
When checking the contents and scope of the packaging, we found that all parts of the product and accessories were present as described.
The instructions for use are available in German on the back of the tin in the form of a consumption recommendation. It is complete and easy to understand.
Overall, the first impression of the packaging and contents of the R(h)ein Nutrition Biotin + Zinc + Selenium capsules is very positive.
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 | appealing design, visual appearance is flawless | 100 points |
| Processing | Very good workmanship | 100 points |
| Stability | Very stable | 100 points |
| Sustainability of the product | High-quality raw materials, vegan, made in Germany | 100 points |
| Other | According to Amazon, over 100 trees were planted with Aktion Baum | 100 points |
| Total | 100 points |
*The maximum score is 100 points
The external appearance of the biotin + zinc + selenium capsules from R(h)ein Nutrition is very appealing. The product presents itself in perfect condition, without scratches, dents or other damage. The surface is smooth and even and the colors are vibrant and appealing.
This undoubtedly contributes to the attractiveness of the product and leaves a positive first impression.
The workmanship of the capsules is of very high quality. There are no defects to be found and the product meets the expectations of precise and careful manufacture.
There are no sharp edges or protruding material on the capsules or the tin.
The product is fully stable. The packaging is made of hard plastic and therefore proves to be extremely robust.
Another noteworthy aspect is the sustainability of the product. The manufacturer attaches great importance to high-quality raw materials, which are selected with the utmost care and processed in certified German production facilities. This underlines the manufacturer’s commitment to quality and professionalism. The product is also vegan, which makes it accessible to a broad target group.
Production in Germany is also a commitment to environmental protection and compliance with strict quality standards.
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.
To summarize, the first impression of the biotin + zinc + selenium capsules from R(h)ein Nutrition is extremely positive in terms of processing and appearance. The stability and commitment to sustainability and environmental protection are further positive features that characterize the product.
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* |
|---|---|---|
| Ingestion | With water, 1 capsule per day | 100 points |
| Ingredients | Zinc gluconate, sodium selenite, very high doses of D-biotin, coating agents and fillers harmless to health | 100 points |
| Offer | 120 capsules, no further dosages or pack sizes available | 90 points |
| Storage | Keep out of the reach of children, in a cool, dry and dark place | 100 points |
| Durability | Over two years | 100 points |
| Total | 98 points |
*The maximum score is 100 points
With a length of approx. 16 mm and a width of approx. 6 mm, the Biotin + Zinc + Selenium capsules from R(h)ein Nutrition are easy to swallow and can easily be taken with water. The capsules provide impressive amounts of essential nutrients.
With 110% of the NRV (nutrient reference value) for zinc in the form of zinc gluconate, 111% of the NRV for selenium in the form of sodium selenite and even 20,000% of the NRV for biotin in the form of D-biotin per capsule, they represent a high-dose food supplement.
The use of these specific nutrient forms contributes to high bioavailability .
It is also pleasing that no harmful coating agents or fillers are used.
The product is offered in packs of 120 capsules. Unfortunately, capsules with different dosages are not available, which could limit customization to individual needs.
Recommended storage in a cool, dry and dark place and protection from children are common recommendations for dietary supplements and should be adhered to in order to maintain the quality and effectiveness of the product.
With a shelf life of more than two years, the capsules have a sufficiently long shelf life.
Overall, the biotin + zinc + selenium capsules from R(h)ein Nutrition impress with their well thought-out combination of zinc, selenium and biotin.
The high bioavailability makes them a promising option for those who want to supplement these specific nutrients.
However, the limited availability of other options may be a limitation for some consumers.
Nonetheless, this product is a high-quality supplement for supporting nails, hair and skin.
However, it should be noted that it is always recommended to consult a doctor before taking such supplements.
The practical test does not provide any information on the effectiveness of the capsules, as it was not possible to test them during the intended test period.
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.
| Criterion | Remark | Score achieved* |
|---|---|---|
| Price / performance ratio | Appropriate | 75 points |
| Rating cut | 4.3 out of 5.0 on Amazon | 65 points |
| Total | 70 points |
*The maximum score is 100 points
On the Amazon platform, consumers rate the product with an average of 4.3 stars.
The positive effect on nails, skin and hair is emphasized. Many users report positive changes after taking the product, particularly with regard to the strength of the nails. Skin and hair are also perceived as improved.
The high dosage of biotin, which is present in bioactive form and therefore offers good bioavailability, is also appreciated.
In addition, the capsules are described as easy to digest and easy to swallow.
They are odorless and tasteless.
Customers also praise the clear communication of the product information, including the recommended dosage and the origin of the ingredients.
On the other hand, concerns are expressed about the extremely high dosage of biotin, which is far above the recommended daily dose. This can lead to falsifications in laboratory diagnostic tests and requires caution when taking the product.
It should therefore be noted that additional biotin intake from other food supplements should be taken into account in order to avoid overdosing.
In our practical test, we found that the biotin + zinc + selenium capsules from R(h)ein Nutrition contain high-quality ingredients.
We found the well-tolerated capsules very pleasant to take and easy to integrate into the daily routine.
However, the high dosage of biotin is a double-edged sword that requires caution. It is advisable to consult a doctor before taking it, especially if other supplements are also being taken.
Prices of up to around €30 are charged on the Internet for equivalent products. Very cheap products are available from around €8 . The biotin + zinc + selenium capsules from R(h)ein Nutrition are therefore currently in the middle price segment with a price of €16.91. For the quality and performance received, the price-performance ratio is reasonable.
Overall result
| Weighting | Score achieved* | |
|---|---|---|
| 1. packaging & contents | 20% | 97 points |
| 2. product processing & appearance | 20% | 100 points |
| 3. in the practical test | 45% | 98 points |
| 4. price/performance & consumer ratings | 15% | 70 points |
| Total | 94 points |
