not near the level that you get after a salon toner or top up of color, but a good level of refresh. The bottom line I like this purple shampoo more than others I've tried, though it wasn't perfect.

This vegan shampoo not only flushes out those brassier ... hair colour tone with this Olaplex No 4 update. Enriched with purple toner pigments, it promises to leave blondes three times brighter ...

To maintain the colour, a purple or ‘silver’ shampoo is a non-negotiable. These boast violet pigment that counteracts orange brassiness in blonde hair although if you leave them in a little ...