Gussi is an innovative, first-of-its-kind, CLEAN & non-toxic keratin smoothing treatment. Professional salon-quality obtained at home, in only about an hour from start to finish, and oh so easy-to-use. Be one of the first to try our new formula, now with Triple Threat/S Complex ! No matter your hair type, texture or tone, transform your hair for up to six weeks with just one treatment. Wear it straight and sleek or flaunt those beautiful shiny curls. NO FRIZZ, NO FUSS.