Hi,
I have to agree I dont think there is a perfect shampoo and I often find that if I use the same one over again my hair becomes strawy. I have tried many different shampoos that have various claims on how to improve your hair, my the only too that seem to work well with my hair is Herbal Essence and Pantene as my hair is very fine. The worse product I have used on my hair was Fructis, it made my hair very greasy. Just like butterflybh said I try to swap my two products each time I wash my hair x