L'Oréal Professionnel Absolut Repair Molecular Bi-Phase Oil is a luxurious, lightweight leave-in treatment designed to instantly restore and transform damaged hair. Formulated with advanced molecular repair technology, this bi-phase oil deeply penetrates the hair fibre, repairing damage at the molecular level while sealing the surface for a smooth, glossy finish. Instrumental test. Instrumental test with Absolut Repair Molecular Shampoo + Rinse-off Serum + Oil.