The ideal choice for colour treated blonde and brunette hair the k pak color therapy luster lock instant shine and repair treatment by joico uses the exclusive bio advanced peptide complex and quadrabond technology to restore hair strength whilst sealing and nourishing the hair restores weak damaged and dry hair with a rejuvenating formula of silk soy and seaweed extracts to use apply to clean damp hair massage into the hair and leave for 3 5 minutes rinse thoroughly