5-star seal

The 5-star seal applies to long-term application tests which provide the maximum possible protection in order to rule out as far as possible subsequent skin reactions among the target demographic: products which have been tested in this way can be termed “clinically tested”. The aim of our application studies is to investigate products thoroughly for tolerability and, as appropriate, efficacy according to clinical dermatology criteria. As a rule, at least 20 test subjects use the product in line with the manufacturer’s instructions, for at least four weeks. If it is applied to the intended skin area (eye cream on the eyes, for instance), the product receives the 5-star seal (“clinically tested”) once the study has completed successfully. The 5-star seal applies to the Original Dermatest® premium sector. Studies with this distinction go beyond determining the potential for skin irritation in terms of their significance. Among other things, application over four weeks can usually rule out sensitisation potential. Complex time planning and test subjects who are specially selected for the requirements of particular tests are just as much part of the standard as the measurement of various physiological skin parameters. The efficacy, safety in use and tolerability of a product are investigated and monitored for longer. Tests are conducted on the intended site of application: eye cream, for example, is investigated directly on the eyes and eyelids.

Features of a 5-star seal of approval:

  • Studies conducted under dermatological control
  • A representative and internationally recommended number of test subjects with specific requirements (skin type, age, etc.)
  • Tests lasting at least 4 weeks
  • Application to intended areas of the skin (face cream on the face, foot cream on the feet, etc.)

In order to guarantee maximum quality, we like to go beyond standard requirements. Additional features might include:

  • Measurement of physiological skin parameters
  • Questionnaires for evaluating subjective experience or product features
  • Other professionals might get involved (paediatrician, ophthalmologist, gynaecologist, dentist, etc.)
  • Final patch test to rule out any allergies which might have developed during the testing period

Under this test structure, there is the maximum possible confidence that prospective buyers and users of the product tested will not experience any intolerance reactions. Dermatest® awards the 5-star seal for tests carried out according to these standards, with no reactions on the part of the test subjects – which is highlighted by the statement “clinically tested”. Repeat patch testing – for total recognition under the 5-star guarantee seal of approval, the relevant date it was awarded appears in the seal motif and the website is quoted for further information on the test design.

Benefits of the seal of approval

The Original Dermatest® seal of approval is evidence of consumer safety for your customers and consumers of cosmetics and consumer goods.

Recognition of the Original Dermatest® seal has risen sharply in recent years. Consumers are coming across the Original Dermatest® seal more and more, not only in product advertising in print and online media, but also particularly on product packaging in the retail sector.

Consumers are coming across the Original Dermatest® seal of approval as evidence of consumer safety in more and more ways. And as a guarantee for the traceability of the test methods, the Original Dermatest® seal of approval is a clear mark of quality for your products.

Products which have earned this seal are keeping the promise of tested and verified quality. Guaranteed.

Your route to the seal of approval in 4 steps

You send us your enquiry.We would be delighted to tell you all about our four categories for the seal of approval, and plan the required testing together as well as define the study criteria. We work out the most suitable study design for your product in-house, based around your preferences and ideas and our requirements.

You decide on one of the available studies and send the requisite sample quantities and information to go with it. We can then start immediately with the internal risk analysis, specific preparations for the study, and recruiting the test subjects!

We carry out the jointly agreed study - perhaps a patch test for our Original Dermatest® seal or application test for using the Dermatest® 5-star seal - at one of our test sites. As always, our primary focus remains checking skin tolerability.

Provided your product passes our review stage successfully once the study is complete, we then send you the study report and authorisation to use the appropriate Dermatest® seal. Besides the German version, we would be delighted to provide you with the Dermatest® seal to support sales in the national language of your sales markets as appropriate.

Ask us now about the 5-star seal

We will get back to you promptly

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You can find details about what personal data we store and who has access to it in our data protection policy.

I consent to my personal data being stored and processed in line with the data protection policy and I consent my personal data being processed by Dermatest GmbH in order to answer my contact or information request.

I can withdraw my consent at any time with immediate effect.*

Companies who trust our seal

GARDEN OF OILS skincare

Good Oil GmbH

DALIO Naturkosmetik Aufbau Shampoo

Walther Schoenenberger Pflanzensaftwerk GmbH & Co. KG

Pflegeshampoo plus Bio Aloe

Walther Schoenenberger Pflanzensaftwerk GmbH & Co. KG

Hej Organic Sensitive Cleansing Gel

HEJ ORGANIC GmbH

449 – peppler nitril flow®

Peppler GmbH

Organic Coconut Pulling Oil

Dr. Goerg GmbH

FAQ

The Original Dermatest® seals represent traceability of test methods as well as for consumer safety and manufacturer endorsement. Depending on the test design and type of study, the seals have four different categories signifying their importance.

The 5-star seal applies to long-term use tests carried out on at least 20 test subjects over a period of at least 4 weeks on the intended site of application. They provide the maximum possible protection in order to rule out as far as possible subsequent skin reactions among the target demographic: products which have been tested in this way can be termed “clinically tested”.

The 5-star seal applies to the Original Dermatest® premium sector. Studies with this distinction go beyond determining the potential for skin irritation in terms of their significance. Among other things, application over four weeks can usually rule out sensitisation potential.

The seals come free of charge provided your product has successfully passed the relevant testing.

There is no time limit set for using the seal. However, if anything changes in the composition or formulation of the products, a new test must be arranged. Under EU legislation, the date the testing was carried out must appear on the product packaging, which is why the month and year of testing are included as part of the seal.

This is possible subject to strict limits. Our design manual gives you further information about how our Dermatest seals may be used. Please get in touch.

Our team is at your disposal

Dr. Annika Michaelis

Study Manager Application Testing
Pia Beer

Pia Beer

Senior Study Manager Application Testing

Dr. Janina Tiemann

Senior Study Manager Application Testing

Dr. Claudia Hömme

Senior Study Manager Application Testing

Dr. Tanja Emmler

Head of Application Testing
Dr. Dominik Schmaltz

Dr. Dominik Schmaltz

Study Manager Application Testing

Schnellkontakt

Rufen Sie uns unter 0251 481637-0 an oder senden Sie eine Nachricht. Wir melden uns umgehend bei Ihnen.

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Ich stimme der Speicherung und Nutzung meiner Daten laut Datenschutzerklärung zu und bin mit der Verarbeitung meiner Daten innerhalb der Dermatest GmbH für die Beantwortung meiner Kontakt- oder Informationsanfrage einverstanden.

Meine Einwilligungen kann ich jederzeit für die Zukunft widerrufen.

Quick request

Call us on 0251 481637-0 or send an email. We will get back to you straight away.
You can find details about what personal data we store and who has access to it in our data protection policy.

I consent to my personal data being stored and processed in line with the data protection policy and I consent my personal data being processed by Dermatest GmbH in order to answer my contact or information request.

I can withdraw my consent at any time with immediate effect.