Allowing you to maintain long-lasting styles without compromise, OSiS Session is an extra strong hold hairspray that protects hair against humidity, heat and wind, whilst adding a luxurious finish – for shiny hair that can be brushed out easily without leaving a flaky residue.Use:Use the extra strong hold hairspray in short bursts on dry hair from approx. 30cm/12in. Schwarzkopf Professional Osis+ Hold Session 300 ml