Pureology Strength Cure hair serum helps strengthen the hair fiber to reduce breakage while also imparting brightness and shine to colour-treated hair. This protecting formula also provides heat protection to prevent further micro-scarring and heat damage to coloured hair.  Strength Cure features exclusive Asta-Repair with Astaxanthin, a powerful nature-derived antioxidant, plus Keravis, Ceramide and Arginine to help heal and repair damaged, micro-scarred hair. Strength Cure replaces the Cysteine bonds to restore strength and add softness, while exclusive AntiFade Complex protects color vibrancy. The signature aromatherapy blend is lavender, honey, peach and vanilla.