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.

VitalizeNature
Shilajit with ashwagandha

Product description of the manufacturer

VitalizeNature Shilajit with Ashwagandha combines two powerful natural products in a unique blend. Shilajit, a natural mineral resin, comes from the depths of the Himalayas and is combined with the beneficial properties of ashwagandha, a plant known for its adaptogenic effects. The product provides holistic support for wellbeing by boosting energy production, promoting cognitive function and supporting healthy immune function.

In the test, the product particularly impressed with its high purity and quality. Advantages: Free from harmful substances, vegan, gluten-free, laboratory-tested. Particularly noteworthy is the addition of ashwagandha, which helps to support stress reduction and physical endurance. Negative comment: A detailed description of the sustainability of the product could increase the overall value.

  • Natural ingredients
  • Free from harmful substances
  • Ashwagandha for stress reduction
  • Vegan & gluten-free
  • Small lettering on the packaging

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

Product is sufficiently protected by the jar

100

Points

Sustainability Packaging

No unnecessary packaging waste was produced

100

Points

Package contents & scope

Complete

100

Points

Instructions for use

Product description is easy to understand

100

Points

TOTAL

100

Points

Weighting: 20%
*Themaximum score is 100 points

VitalizeNature Shilajit with Ashwagandha is supplied in a sturdy jar that provides optimum protection for the product. This packaging protects the product well from external influences during transport. A particularly positive aspect is that there is no unnecessary packaging waste, which leaves a lasting impression. The package contents are complete and correspond to the stated 30g, which is in line with expectations. The instructions for use are clear and easy to understand, which makes application uncomplicated for the end user. Overall, the packaging impresses with its functionality and sustainability, which gives the product a good first impression and inspires confidence in its quality.

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

High-quality packaging, golden portioning spoon

100

Points

Stability

Very stable

100

Points

Sustainability of the product

Not specified

100

Points

TOTAL

100

Points

Weighting: 20%
*Themaximum score is 100 points

The product makes a high-quality impression, both in terms of packaging and design. The jar is attractively designed and immediately conveys the impression of high quality. Particularly noteworthy is the golden scoop, which enables precise dosing of the shilajit. The material of the jar is very stable and feels robust, which speaks in favour of the longevity of the product. Unfortunately, there is no detailed information on sustainability. The workmanship of the jar is impeccable.

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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Odour testing of the product

Fully in line with the typical properties of shilajit, with 4.4 % withanolides and a high concentration of curcumin

100

Points

Consistency testing of the product

Very viscous, but without lumps or irregularities

90

Points

Testing the solubility in water

Product is almost completely dissolved

90

Points

Testing for residues after dissolution

Fine residues are visible

90

Points

Checking the product information on the packaging

Easy to understand product imprints, the font is very small

80

Points

TOTAL

90

Points

Weighting: 45%
*Themaximum score is 100 points

In the practical test, VitalizeNature Shilajit with Ashwagandha was able to fulfil the advertising promises in full. The odour of the product corresponds perfectly to the typical properties of shilajit, which underlines the authenticity and purity of the product. A withanolide content of around 1.5 % – 5 % is specified in high-quality ashwagandha extracts. Our laboratory test showed that the product contains 4.4 g of withanolide. A value of 4.4 g/100 g corresponds to 4.4 %, which is in the upper range of high-quality ashwagandha products. With 4.4 % withanolides, this is a high-quality extract. Withanolides are considered the most important bioactive ingredients of ashwagandha. They are responsible for stress-reducing, anti-inflammatory and immunomodulating effects (see Chandrasekhar, Kapoor & Anishetty 2012, p. 255 ff.). Ashwagandha is often used for stress reduction, sleep improvement and physical performance enhancement (see Chandrasekhar, Kapoor & Anishetty 2012, p. 257 ff.). The laboratory test also showed that the product contains 8416 mg/kg curcumin. At 8416 mg/kg, this value is in the upper range of commercially available products, but below that of high-dose speciality preparations. Curcumin is a powerful antioxidant and has anti-inflammatory properties (see Hewlings & Kalman 2017, p. 1 ff.). It is often used to support joint complaints, inflammatory processes and generally to promote health (see Hewlings & Kalman 2017, p. 1 ff.). The consistency is viscous, but without lumps or irregularities, which emphasises the quality of the product. In terms of solubility in water, the product dissolves almost completely, which emphasises its high quality. Only fine residues remain, but these do not impair use. The product information on the packaging is generally easy to understand, but the font size is somewhat small, which makes it difficult to read for some users. Overall, the product fulfils the advertising promises and impresses with its purity and effectiveness. Overall, both ingredients are an above-average high-dose formulation aimed at consumers who are looking for particularly potent dietary supplements (see Salve, Pate et. al 2019). The product is therefore particularly attractive for the health sector, especially for target groups who value strong herbal active ingredients.

Bibliography

Chandrasekhar, K.; Kapoor, J & Anishetty, S. A prospective, randomised double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of Ashwagandha root in reducing stress and anxiety. Indian J Psychol Med. 2012; 34 (3) :255-262. URL: https://doi.org/10.4103/0253-7176.106022 [28.04.2025].

Hewlings, S. J. & Kalman, D. S.. Curcumin: A Review of Its Effects on Human Health. Foods. 2017 Oct; 6 (10): 92. URL: https://doi.org/10.3390/foods6100092 [28.04.2025].

Salve, J.; Pate, S.; Debnath, K. & Langade, D. Adaptogenic and Anxiolytic Effects of Ashwagandha Root Extract in Healthy Adults: A Double-Blind, Randomised, Placebo-Controlled Clinical Study. Cureus. 2019 Dec; 11 (12): e6466. URL: https://doi.org/10.7759/cureus.6466 [28.04.2025].

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

Very good performance in the lower price segment

90

Points

TOTAL

90

Points

Weighting: 15%
*Themaximum score is 100 points

Prices of up to €39.90 are charged on the Internet for equivalent products. Very affordable products are available from as little as €19.95 . The Shilajit with Ashwagandha from VitalizeNature® is therefore currently in the lower price segment with a price of €24.85. For the quality and performance received, the price-performance ratio is very good.

Overall result

1. packaging & contents

20%

100

Points

2. product processing & appearance

20%

100

Points

3. in the practical test

45%

90

Points

4. price/performance & consumer reviews

15%

90

Points

TOTAL

94

Points

*Themaximum score is 100 points

Shilajit with ashwagandha
 of the brand 
VitalizeNature
achieved
94
Points in our test and therefore passed. The test was carried out in the test period
04/25
and is stored in our database under the licence number
250227001
. 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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