Annotation Many non invasive methods are now used to characterize the cosmetic products properties and their interactions with skin and hair Physico chemical studies, biological and clinical effects measurements, the development of new instrumental techniques are crucial for the cosmetic sector COMET (Cosmetic Measurement & Testing) is the 1st scientific congress dedicated to cosmetics testing & measurement COMET is the place where academic researchers, the major firms, SMEs and start ups share knowledge and participate in scientific discussion