Salon-quality shampoo for coloured hair from ethical/cruelty free brand?

[cheeseycharlie]

Hi
Been using Marix for years and love it but am switching over to cruelty-free products now.
Tried Paul Mitchell everyday shampoo for coloured hair and its manky, my hair is greasy and lank and my colour faded.
I use semi-permanent dye so need a specialist shampoo so that it lasts a decent amount of weeks before needing touch ups.

Any ideas?

What's your budget?

I love OGX for about £7 a bottle, so not proper salon quality. But I alternate it with Orbie which is eye wateringly expensive per bottle but lasts forever because you only need a tiny drop

Using the two averages out at a just-about-reasonable cost per month!

Sorry, should have added, OGX is cruelty free, paraban free etc
Orbie is all of those plus vegan

Ooh lovely thanks!
I'm prepared to spend a bit. Matrix was £15/litre. The Paul Mitchell crap is more, about £10/500ml. I think that's probably my limit!
Will look up those brands thank you 💁