Keeps clothes looking like new with this Woolite Dark Laundry Liquid Detergent Choose from 750ml and 4500ml Helps to prevent lighter colours from becoming dull due to its colour catching ingredients Woolite Darks has the perfect balance of clean and care Keep the darks you love vibrant for up to 12 washes. Contains an active ingredient that acts as a dye magnet during the wash cycle Buying Options:  6.79 pounds for 750ml  27.99 pounds for 4500ml