Shampoo that gives longevity between washes

[sfagan2022]

I switched to Olaplex end of last year and expected miracles but for the price all I'm getting is going four days between washes. Don't get me wrong that part is great but I don't feel my hair looks drastically different for the price tag. Has anyone found anything that gives them a good stretch between washes for coloured hair (bleach)?

I've spent fortunes on hair care to discover head and shoulders always gives me the longest time between washes. I like the colour care one

Kerastase Bain Divalent. I don't think it says anything specific about bleached hair so guess it's ok.

I just bought a Percy Reed colour protect shampoo which is allowing me to go 3 days. I wouldn't want to leave it longer than that but am trying to reduce colour fade in my newly dyed hair. Normally I wash it every day so this is good for me!
I think these things depend more on your hair type than your shampoo mostly.