The third step of Joico’s K-PAK Hair Repair System, the Deep-Penetrating Reconstructor works to repair & transform damaged hair that’s been totally ravaged by heat-styling, colour & chemical treatments, & the environment. Reviving & rebuilding each strand from the inside out, the strengthening treatment helps improve tensile strength & porosity to reduce future breakage & mend weakened tresses. Ideal for dry, fine or curly hair types, the K-PAK Hair Repair System provides you with the most resilient, healthiest-looking, shiniest & manageable hair you can imagine. The fortifying formula features the highest concentration of hair-healing ingredients to power up Reconstructor for optimal efficiency. Keratin, a protein found naturally in hair, actively seeks out damage & helps the repair process by replenishing lost proteins. Smartrelease Technology, an innovative liposome delivery system continuously releases a blend of Rosehip oil, Arginine & powerful antioxidant Guajava Fruit extract to protect strands against harmful external aggressors. Loaded with Omega-6 & Gamma-Linolenic Acid, Evening Primrose Oil offers potent nourishment, transforming stressed locks back to health. For best results, use the Reconstructor in the four-step repair system for locks that feel stronger, healthier & shinier.