what is a true semi permenet hair dye that would be used in a salon?

Answer 1

Not too many salons seem to use semi-perm colours - they mainly seem to deal with permanent ones. You would be best calling the salon to check which brands they use.

http://www.beeunique.co.uk
hows all colours and help, hints, info etc for Special Effects and Manic Panic hair dyes

Answer 2

i dont know aboutin a salon, but if you want pink blue green hair stuff, use manic panic. i use it and now my hair is pink! i think there is a http://www.manicpanic.com/ =D

happy hair-dyeing!