Shampoo to strengthen / thicken hair.

[Tirrrrred]

Hi I can't spend too much because it's for myself and 2 dds so I'd have to buy it frequently.

Hoping for £5 max per bottle. Is it possible?

Also one dd has a flaky scalp so uses head and shoulders so any that deal with dandruff too would be good please.

Thanks.

I'm using Pantene with bamboo which seems to help though might be my imagination. Asda has it on offer frequently