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.

4gloss©
Premium collagen powder

The premium collagen powder from 4gloss© leaves a high-quality overall impression. Product protection is guaranteed thanks to the sturdy cardboard packaging and plastic film, although more environmentally friendly alternatives would be desirable in the future. The packaging scores points for functionality and stability, while the sturdy measuring spoon ensures easy handling. The visual appearance is attractively designed, which makes the product stand out visually. The workmanship is impressive with its very good quality and production in Germany, which emphasises high standards and reliability. The package contents are complete and the instructions for use are clear, understandable and written in German. The packaging shows good stability, which also protects the product during transport. There is no detailed information on the sustainability of the product, but the choice of high-quality materials suggests a certain longevity. At the same time, it is positive to emphasise that unnecessary packaging waste has been avoided.

  • Very soluble
  • Easy to dose
  • neutral in taste and odour
  • No information on organic quality or sustainability

The first impression

Packaging and contents

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?

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?

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Product protection

Carton is sturdy, product sufficiently protected

100

Points

Sustainability Packaging

Unnecessary packaging waste has been avoided, the plastic film protects the product components and is important for hygiene. It would be desirable to switch to an environmentally friendly alternative in the future.

90

Points

Package contents & scope

Complete

100

Points

Instructions for use

Written in German, easy to understand

100

Points

TOTAL

98

Points

Weighting: 20%
*Themaximum score is 100 points

The premium collagen powder from 4gloss© impresses with its sturdy product protection that adequately secures the product. The packaging is functionally designed, avoiding unnecessary packaging waste; the plastic film used effectively protects the product components. A future switch to more environmentally friendly alternatives is considered sensible. The package contents are complete and meet expectations. The instructions for use are clear, understandable and written in German. Overall, a well thought-out product with potential for optimisation in terms of sustainability.

Lots of air in the packaging

The first time in your hand

Product processing and appearance

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?

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?

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Visual appearance

Attractive design

100

Points

Processing

Very good workmanship, produced in Germany

100

Points

Stability

Stable packaging, including stable measuring spoon

100

Points

Sustainability of the product

No specifications, but use of high-quality materials, 60-day money-back guarantee. Produced in Germany.

70

Points

TOTAL

93

Points

Weighting: 20%
*Themaximum score is 100 points

With practical measuring spoon

The premium collagen powder from 4gloss© impresses with its attractive design and very good workmanship, which indicates that it is produced in Germany. The packaging is sturdy and also contains a sturdy measuring spoon, which makes handling easier. There is no specific information on the sustainability of the product. All in all, a high-quality product with a solid overall impression.

This is what our practical test showed

Does the manufacturer keep its advertising promises?

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.

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.

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Glycine

Slightly above average

60

Points

Alanine

The value is average

50

Points

Aspartic acid

In the upper average range

55

Points

Proline

The value is slightly above average

70

Points

TOTAL

59

Points

Weighting: 45%
*Themaximum score is 100 points

The premium collagen powder has typical concentrations of the essential
amino acids
that are in line with or slightly above the standard of comparable products. Glycine and proline in particular contribute to the effectiveness of the product by supporting the skin, joints and connective tissue.

In the practical test
Test plan

You can find a detailed insight into the evaluation criteria of the practical part of the test and the distribution of points here. If you are also interested in the evaluation of our other test criteria, please read our document on the evaluation process.

Price/performance ratio

and ratings from consumers

Finally, we analyse 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.

Finally, we analyse 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.

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Price / performance ratio

Good performance in the mid-price segment

70

Points

Rating cut

TOTAL

60

Points

Weighting: 15%
*Themaximum score is 100 points

At the time of testing, the product had not been listed on Amazon for long enough. Therefore, the existing reviews do not sufficiently reflect the advantages and disadvantages of the product, so this point is neglected in the evaluation

Prices of up to € 165.00/kg are charged on the internet for equivalent products. Very cheap products are available from as little as €45/kg . The premium collagen powder from 4gloss© is therefore currently in the upper price segment with a price of €117.90/kg. For the quality and performance received, the price-performance ratio is good.

Overall result

1. packaging & contents

20%

98

Points

2. product processing & appearance

20%

93

Points

3. in the practical test

45%

59

Points

4. price/performance & consumer reviews

15%

70

Points

TOTAL

75

Points

*Themaximum score is 100 points

Premium collagen powder
 of the brand 
4gloss©
achieved
75
Points in our test and therefore passed. The test was carried out in the test period
12/24
and is stored in our database under the licence number
240919008
. 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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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.

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