Schwarzkopf Gliss Hair Repair Oil Nutritive Conditioner 13.6 oz. The Repair Solution, a non-greasy formula with 8 Beauty Oils & Keratin not only nourishes the hair, but also deeply repairs stressed hair structure with keratin, for fewer split ends. Liquid Keratin reconstructs your hair and renews it by repairing damaged areas deep inside the hair and on its surface.