what is the best shampoo to use on colored hair?
['Redken Color Extend Shampoo. ... ', 'Matrix Biolage Colorlast Shampoo. ... ', 'Living Proof Color Care Shampoo. ... ', 'Sachajuan Colour Protect Shampoo. ... ', 'amika Bust Your Brass Cool Blonde Shampoo. ... ', 'Aveda Color Conserve Shampoo. ... ', 'Pureology Hydrate Shampoo. ... ', 'Olaplex No. 4 Bond Maintenance Shampoo.']