L'Oréal Expert Professionnel Styling Products STEAMPOD Protecting Concentrate Serum. Smoothing serum enriched with pro-keratin technology that nourishes and protects damaged hair and ends during the straightening process.
It leaves my hair smooth and shiny, without leaving that heavy and oily effect. It is easily absorbed by the hair. It helps in the straightening process with the Steampod, but I don't think it's essential for hair to stay straight and beautiful