Andie MacDowell's secret for maintaining her vibrant and voluminous gray locks is in this under-$20 L'Oréal Paris purple ...

Color-depositing shampoos add specific pigments (either purple, blue or green) onto the hair shaft to maintain your desired color. Based on color theory, blondes should use purple shampoos ...

Choose a semi-permanent purple dye then dial down the vibrancy by mixing it with conditioner. To maintain the colour, a purple or ‘silver’ shampoo is a non-negotiable. These boast violet ...

The combination of the shampoo & conditioner has strengthened my hair ... can see a difference in the health of my hair. The purple color also protects against brassiness, which is what ...