REDKEN Extend Blondage Purple Shampoo & Conditioner Set - Toning & Color Depositing for Blonde Hair - Perfect for Salon & At-Home Blonde Maintenance

The perfect purple shampoo to maintain my blonde highlights. I can’t stand when it’s brassy and yellow. I use it once, maybe twice a week, and it maintains the more toned blonde I am going for. I leave it in for the 3-5 minutes it says after using normal shampoo.