Biologique Recherche Expert EyesBiologique Recherche Finishing serums are the most complex and concentrated of BR formulas. They are intended to be used during the last stage. They should applied after creams to stabilize the products used during treatments. They also make an excellent base for make up. Glamorous and sophisticated, these precious extracts promote radiance and give the skin a natural radiance. Expert Eyes provides a complete solution to the lack of density and length