Redken Color Extend Magnetics Mask Information Buy any 2 Redken items and get 2 GWP's for free.While stocks last.Redken's Color Extend Mask is formulated with zinc gluconate to strengthen the hair fibre and strands with intense moisutre replenishment, leaving hair feeling softer, smoother and more fortified. £18.90 £24.26250ml Sorry, product is not in stock at the moment.