I spend a lot on haircolor-how can I make it last longer?
Stylists used to tell you to wait two days to shampoo after a color treatment. Speaking from experience, I'd make it three. You want the pigment to fully penetrate and seal itself in the hair shaft before you wash. Between treatments, you might also consider Matrix's Shade Memory (shown in Vivid Reds), which offers shampoos and conditioners that refresh color by removing luster-busting buildup-and enrich hair without dulling the base.