what is the best shampoo and conditioner for gray hair?
['Redken Color Extend Color Depositing Graydiant Shampoo. ... ', 'Rene Furterer Okara Mild Silver Shampoo. ... ', 'Davines Oi Shampoo. ... ', "L'Oreal Serie Expert Silver Shampoo. ... ", 'Clairol Professional Shimmer Lights Shampoo. ... ', 'Klorane Anti-Yellowing Shampoo with Centaury. ... ', 'Davines Alchemic Shampoo.']