Joico K-Pak Color Therapy Luster Lock treatment. This shine-enhancing formula provides dual action, creating a glossy shine while working to repair hair. Your hair will look more alive with an illuminated finish that will add a finishing touch to any hairstyle. The nourishing formula provides deep repair to help reduce damage caused by heat styling and colouring, promoting smoother, softer and more manageable curls. The treatment can be used after application or before shampooing to make your hair not only look better, but healthier. Quadrabond Peptide Complex helps repair and replenish damaged hair and strengthen natural texture, while silk, soy and seaweed extracts provide hydration. It will protect your hair from the negative effects of the sun, salt or chlorinated water by creating a protective film on your hair.