Joico K-PAK Deep Penetrating Reconstructor with a hair-saving formula that rebuilds and re-fortifies even hopeless hair in minutes, this mane must-have prepares your hair for a future with less damage.- Rebuilds and re-fortifies damaged hair- 64% less breakage*- Instantly healthier-looking hair*Against combing breakage on damaged hair vs. a non-conditioning shampoo.We add the highest concentration of hair-healing ingredients to power up Reconstructor for optimal efficiency.- Keratin - protective protein found naturally in hair, actively seeks out damage and helps repair hair by replacing lost proteins. The result? Stronger, healthier-looking locks.- Guajava Fruit Extract. Packed with antioxidants and Lycopene, which are known to help protect hair against UV damage.- Evening Primrose Oil. A rich source of Omega-6 and Gamma-Linolenic Acid, an essential fatty acid that helps nourish hair back to health.- SmartRelease Technology. Our one-of-a-kind liposome delivery system packs a punch by continuously releasing Rosehip Oil, Arginine, and Keratin to help repair, strengthen, and protect hair from the damaging effects of daily styling.