Redken Colour Extend Magnetic Duo consists of a shampoo and conditioner specially formulated to keep coloured hair looking fresh and vibrant. Redken Colour Extend Magnetic Shampoo 300ml cleanses and conditions coloured hair, nourishing your colour and leaving hair feeling softer and smoother. When applied after Redken Colour Extend Magnetic Shampoo, Redken Colour Extend Magnetic Conditioner 250ml will help to extend the life of your colour. The repairing formula will help to de-tangle your hair, will condition damaged, coloured hair, and restore vibrancy, so that you look and feel like your hair has been washed at the salon.