3-star seal

The 3-star seal is awarded for short-term exposure tests at the site of application, or alternatively for long-term investigations of skin condition or skin function on areas of skin other than the prospective site of application. This includes, for instance, improvement in skin hydration from a face cream which was tested on the forearm. The 3-star seal represents a significantly more complex study design and carries more weight than a simple patch test. This seal may also only be used, provided the formula or composition of the ingredients does not change. Tests to which these seals apply can include measurement of physiological skin parameters, such as determining skin hydration, roughness or elasticity. This can also be done over extended test times. In the same way, 3-star seal investigations can include claims relating to allergy potential (for repeat patch testing – test times longer than 4-6 weeks).

An one-time application test in the prospective area (such as testing face masks on the face for tolerability) can also earn a 3-star seal of approval in view of their greater significance and the more application-based test design. The study design for this testing is closely coordinated with the client and tailored specifically to the relevant product.

Examples of a 3-star seal test:

  • Tests over a prolonged period to determine other physiological skin parameters (skin hydration, elasticity, skin barrier, etc.)
  • Intensive one-time testing of a product beyond the normal period of use, tests on the prospective area of application

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 3-star seal

We will get back to you promptly

1+1?*

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

HYDRA SILK TURMERIC SUPREME

Linde Eckstein GmbH + Co. KG

HYDRA SILK TURMERIC BALSAM

Linde Eckstein GmbH + Co. KG

PAEDIPROTECT

Paedi Protect AG

JOYDIVISION Soft-Tampons

JOYDIVISION international GmbH

PHINTIN Premium Organic Essential Oils

Hilnes GmbH

GLIM Skin

SkinLove Ruhr 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 3-star seal is awarded for short-term exposure tests at the site of application, or alternatively for long-term investigations of skin condition or skin function on areas of skin other than the prospective site of application, or open patch testing on the site of application requiring at least 20 test subjects. The 3-star seal represents a significantly more complex study design and carries more weight than a simple patch test.

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

Senior Study Manager Application Testing

Pia Beer

Senior Study Manager Application Testing

Dr. Janina Tiemann

Head of In-Vitro Analysis

Dr. Claudia Hömme

Senior Study Manager Application Testing

Dr. Tanja Emmler

Head of Application Testing

Youngjae Park

Study Coordinator APAC

Schnellkontakt

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

1+1?*

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.*

Quick request

Call us on 0251 481637-0 or send an email. We will get back to you straight away.
1+1?*

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.*