A method of forming curls/waves of hair with a styling device having shaping surfaces of shaping plates and a device designed to perform said method are disclosed. The hair is heated until the sulfur bonds contained in the keratin chains are extensively broken. The heated hair is pulled past several spaced-apart shaping bodies, other while in contact with them. Upon contacting the first shaping body the hair has a temperature where the sulfur bonds are extensively broken, then, before leaving the last shaping body has cooled to where the sulfur bonds have largely rejoined.The device comprises two hinged arms moving against each other, each having a shaping plate on its facing surfaces. The styling arm carries on its outer side several shaping bodies arranged at a distance from each other, from the outer termination of the housing and, extending in the longitudinal direction.