I know the PetsMart Grooming salon here sells a line of products. They would at least be a better quality then some of the ones out in the store. You could see if they have a hypoallergenic one. Otherwise check with your vet and see if they sell one.
The Lambert Kay ones are a good brand. I saw them when I clicked on your shampoo link. If that is what you can buy there, they would be fine, I would go with the oatmeal one maybe, over the Medi clean one.