Schwarzkopf Styling Products STRAIT STYLING THERAPY Straightening Cream 1. Smoothing cream with silk protein complex that provides a sensational shine. For normal hair. Innovative thermal straightening system that turns your hair into a smooth beauty, easy to comb and with sensational shine so you have an elegant look. If you want your treatment to be extra effective and long-lasting, combine it with STRAIT STYLING THERAPY neutralizing milk and the post-treatment mask from the same line.