Hair serum Sérum Thérapiste is a double-action split end treatment and heat protection serum for very damaged and split ends hair. Its innovative formula associates a repairing cream and binding hair serum for heat damage protection reaching up to 230°C making it a great heat protection serum that also offers split end repair. Resurrection Sap contained in this hair serum regenerates hair strands and minimizes hair breakage. Repairs severely damaged hair fiber 450°F thermo-protection Provides hair with key nutrients Provides a soothing texture for itchy scalps