Best Shampoo/Conditioner for vividly dyed hair?

[daftyburd]

I would like some recommendations for best shampoo, conditioners, serums and styling products for vividly dyed hair. I know a bright hair colour will always fade quickly and I like changing my colour frequently. However once a month is too much plus my poor shower cubicle is rainbow hued.

Aussie shampoo & conditioner for coloured hair is the best. Plus the 3minute miracle treatment they do is brilliant. It always makes my crazy coloured hair so silky and hydrated
Tesco, Superdrug etc usually have it 3 for £10 too so not a bank breaker