Eurofins report



What is Eurofins?

Eurofins is an international group of laboratories headquartered in Luxembourg, providing testing and support services to the pharmaceutical, food, environmental, agriscience and consumer products industries and to governments. 

The effectiveness of GR-7 Professional is certified by scientific tests
conducted by Eurofins Scientific, world leader in bioanalytical tests.

GP’s statement on effectiveness (view here)

Effectivness confirmed by 

Full report

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  • GR-7 No More Grey Hair

    GR-7 Professional – No More Grey Hair | 125ml

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Real people, real results

Getting back your true hair colour is an emotional thing. That is why we do not have studio session ‘before and after’ photos. We just have these imperfect, but true photos of some of our customers.

Gr-7 Professional is distributed in UK and Ireland by:


+48 604 404 284

All rights reserved. 2020 © GR-7 Sp. z o.o.

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