Dd hair help greasy with dandruff ?

[dreamingofalotterywin]

Dd 8 has dandruff, she had cradle cap as a baby and it's led to dandruff but she also has a greasy hair type especially at the roots so needs regular hair washes.
Can anyone recommend a shampoo/conditioner that will tackle greasy hair/ dry scalp?

The Inkey List 7% Glycolic Acid Exfoliating Scalp Scrub 150ml | Removes Product Build Up | Hair Growth | Fragrance Free | Suitable For All Hair Types amzn.eu/d/die6MmB

I got this for dd who has similar hair/scalp. We use it before shampoo and conditioner once a week - apply, massage and leave for 10 mins then shampoo out.

Her hair now gets greasy much more slowly and she doesn't have a flaky scalp anymore.

Thanks @CrossCuntry

Body shop ginger, and try to stop washing as often, it's counter productive