Say hello to strong and smooth hair with the Corioliss K2 Treatment Bottle - Argan Treatment. Specially designed for use with the Corioliss V2 Vapour Infusion Iron, which uses heat activation to turn the argan oil into steam, it smoothes and conditions your hair as you straighten. Your hair will be left feeling sleek and soft, with a lustrous, healthy shine that exudes vitality. - L.M.Directions of Use: Slide the unlock button on top of the K2 Vapour Infusion Iron to open and remove the tank Pull the rubber tab to unblock the opening and refill the tank with the oil until it becomes full Push back the rubber lock and fasten the tank back in place Turn on the iron and set the temperature Use as desired