Hello again :)
I'm looking for some suggestions as to which of the blue dyes work best on virgin hair? It's for my boyfriend who has.. mid brown hair i suppose.
He doesn't want to bleach it, so doesn't expect it to be extremely vibrant. Just something thats shows up nicely.. preferably with a decentish staying power.

Am i asking for a miracle? I have no experience of blues..

I think this article will be helpful to you:
http://haircrazy.info/beginnerguides/dyeing-unbleached-hair/

thank you mlove. i knew i'd seen something relevant once but was having a stupid day.

That's okay, glad I could be helpful.
^_^