shampoo for itchy scalp when I have coloured hair?

[theidsalright]

The itch is driving me crazy but all the shampoos look like they will strip my hair. It's temporary colour but I'm very grey! Ideas? Please?

body shop ginger one is supposed to be good for scalp issues

Is it especially for dyed hair?

Ooh thanks, I just read up on it and lots of people say it's fine for coloured hair. Woop!

Dead Sea Salt shampoo is amazing for itchy, scabby scalps. I dye my hair and don't find it strips the colour at all. No silicon or SLS I think.
www.amazon.co.uk/Dead-Sea-Spa-Magik-Mineral/dp/B000KU934E

Aveda Shampure.

Head and shoulders for itchy scalp

I use Alberto Balsam tea tree shampoo which is better than H&S for stripping colour.