Schwarzkopf Glatt Hair Straightening Cream straightens even frizziest hair, making it durably supple and manageable. The special Keratin-Care-Complex strengthens the hair structure, providing additional care and easy manageability. Glatt Schwarzkopf Hair Straightening Cream is designed to create permanent, natural-looking straight hair for those with naturally curly, frizzy or wavy hair. This Straightening Cream contains a wheat-based care complex to leave hair smooth and shiny. Contains 120ml straightening cream and 120ml neutralizing balm. For Professional Use Only.t, smooth and shiny hair. Number - 0 is for naturally very curly / naturally frizzy hair. The kit includes an 82ml tube of hair straightener and 2 x 40ml sachets of neutralizing balm. Schwarzkopf Glatt is a professional chemical straightening product. Do not use on hair which has been through extensive chemical treatments such as bleaching, coloured using a metallic hair dye or straightened using relaxers containing Lye or Guanidine Carbonate. Do not use on an irritated scalp or broken skin. Always read the instructions carefully. A patch test is recommended 48hours before use.