View Deal Olaplex No.4P Blonde Enhancer Toning Shampoo: was £28 now £17.84 at Amazon This is hands down one of the best purple shampoos I've used. As I said, I've been blonde (not naturally ...

This Black Friday sale on Olaplex (one of the top hair-care lines ... the struggle with yellow-y brassiness is real. This purple toning shampoo helps neutralize those garish gold shades, leaving ...