Set No 2 Schwarzkopf Glatt Hair Straightener Rebonding Straightening Cream 400ml. Schwarzkopf Glatt Hair Straightening Cream straightens even frizziest hair, making it durably supple and manageable. Glatt Schwarzkopf Hair Straightening Cream is designed to create permanent, natural-looking straight hair for those with naturally curly, frizzy or wavy hair.