Guinot carries out the manufacturing of its products with pharmaceutical accuracy and diligence. Guinot’s laboratories are one of the few cosmetics-manufacturing establishments in the world to have been certified to the highest quality standard by the international certification group Bureau Veritas, ISO 22 716.

This certification guarantees the high quality of manufacturing standards: cleanrooms, pure water which is continually tested, double-checking of weights, traceability of each product. In order to measure the effectiveness of its beauty care methods and its products, GUINOT has re-established a Pilot Salon within its Research and Development Centre. It enables new active ingredients arising out of recent scientific research to be evaluated, in order to improve formulas and increase their effectiveness. The beauty therapist at the Research Centre can also develop new treatments, improve beauty care protocols and measure their effectiveness.and measure their effectiveness.