Preserve your hairs colour with the redken colour extend magnetics shampoo a sulphate free shampoo that provides captivating care for colour treated hair this sulphate free shampoo will help to maintain the hairs colour with redkens ipn technology and amino ions which work to seal in colour and leave hair up to three times more fortified the gentle shampoo will create a rich luxurious lather that covers the entire hair to help seal in colour molecules lightweight conditioning and cle