Which blue shampoo to use?

[WafflesOrIceCream]

Hello!

I have just had a balayage done and the stylist advised me to use a blue shampoo once a week to avoid my hair going brassy.She did say use any but I wanted to ask if anyone can recommend a good blue shampoo?Reasonable price too.Has anyone tried fanola?

There's one called Joiejo or similar. It's good.

I use the Ethique purple shampoo (it's in bar form so it may not be the thing you're looking for) and it leaves my hair beautiful