Sericin Hair Complex presents an innovative leave-on treatment or finalizing of hairstyles that act to decrease the volume and the frizz of the hair. Sericin hair complex acts filling up the damaged hair porosity, promoting intense shine and fiber repair. These properties aid perfect hairstyling, resulting in volume decrease with an anti-frizz action, non-chemical, associated with the color intensification and maintenance (after hair dying and successive washes), conditioning, and recovering the fiber, which leads to longer maintenance of a straight hairstyle, without volume.