Can anyone recommend some shampoos for AA?

At the hairloss centre I got my ahirpiece from, they recommended one from the range they carry, called Bio-Fanelan, which I have just finished my 3rd bottle. It's £15.50 a pop so not cheap, especially as it doesn't foam very much so I need quite a lot for my hair to feel clean.

Are there any available in the UK that anyone would recommend? The ones off the shelf in Boots, chemists etc are just for hereditary hairloss, not specifically for alopecia.

Thanks guys