Shampoo for pre-teen's greasy hair

[bubblebubblebubbletrouble]

any recommendations??
Dd1's hair is staring to get really greasy really quickly.
Ideally cheap & cheerful if possible.

We found Paul Mitchell baby shampoo was really good on a preteen who was greasy - I didn’t want to use an adult shampoo and this one was brilliant.

The blue tresemme works for mine (think its deep cleansing). Her hair is a dark blond and looks like a chip pan on the second day. This works wonderfully and she doesn't have to wash as often. Few quid for a huge bottle

My hair used to be really greasy and I'd get 3 days max out of it. During lockdown, I kept leaving it as long as possible by shoving it in a bun etc and that massively helped.

Now, I can go 1 week without it being greasy :) I use a banana shampoo from poundland :)