Applied after rinsing off your colour, the outstanding Nioxin Color Lock Colour Seal Treatment ensures that your gorgeous colour is locked into your hair. Your cuticles and pigments are sealed after the colouring process to ensure that your colour remains true and vibrant for longer. Alkaline and peroxide residues are neutralised without weighing down your tresses and your hair is conditioned and strengthened via Densi PROTECT technology to prevent brittleness and breakage. Expect long-lasting, perfect colour and healthy locks that you can style in confidence. Benefits: Locks-in colour Neutralises residues Strengthens hair Features Densi PROTECT technology Reduces brittleness and breakage Directions: Apply after rinsing off colour, BEFORE shampooing. Massage-in evenly to finish the colouring process. Leave 3 to 5 minutes and rinse well. Complement your Nioxin Color Lock Color Seal Treatment with the appropriate 3-part System kit for optimal results.